Estimated reading time: 18 minutes

Updated July 2026

Pollen allergies in dogs do not usually look exactly like hay fever in people.

A person may sneeze or develop watery eyes. A dog affected by pollen is more likely to develop itchy skin, lick their paws, rub their face or experience recurring ear problems.

However, pollen is only one possible cause of itching.

Fleas, harvest mites, other parasites, bacterial or yeast infections, food reactions and contact irritation can produce very similar signs. Some dogs are affected by several triggers at the same time.

Do not diagnose a pollen allergy simply because your dog becomes itchy during spring or summer.

Your veterinary team may need to examine the skin, check for infection, review parasite protection and consider other possible causes before recommending treatment.

This guide explains the signs to watch for, how seasonal patterns can help, practical ways to reduce exposure and when your dog needs veterinary attention.

For broader Health and emergency guidance, visit my Dog Health and First Aid Guide.

The quick answer

Arrange a veterinary appointment when your dog develops:

persistent scratching
repeated paw licking or chewing
red, sore or broken skin
hair loss
recurring ear irritation
an unpleasant smell from the skin or ears
dark or thickened skin
rubbing around the eyes or muzzle
symptoms that repeatedly worsen during particular months
itching that interrupts sleep or normal activity

While waiting for advice, you can:

keep a record of symptoms and walking routes
check the current pollen forecast
use a different route when one area repeatedly triggers symptoms
prevent rolling in long grass
wipe paws and the coat gently with a clean damp cloth
wash bedding regularly
keep parasite protection current according to veterinary advice
prevent persistent licking and self-trauma where this can be done safely

Do not give:

human antihistamines
leftover prescription medication
herbal allergy remedies
essential oils
unprescribed supplements
another dog’s skin treatment
medicated shampoo chosen without advice

Some human antihistamines and combined products can be dangerous to dogs. Only use medication prescribed or specifically approved for your individual dog by your veterinary practice. (Blue Cross)

What is a pollen allergy?

A pollen allergy is an excessive immune response to otherwise ordinary pollen from plants such as:

trees
grasses
weeds

The dog’s immune system reacts to the pollen as though it presents a threat.

Pollen may contact a dog through:

walking through grass
lying on vegetation
rolling outdoors
pollen landing on the coat
pollen entering the home through doors and windows
pollen being carried indoors on clothing or footwear

Environmental allergies may form part of a wider condition called allergic skin disease or canine atopic dermatitis.

Dogs with allergic skin disease can react to more than one trigger, including pollen, dust mites, mould, fleas and sometimes food. The condition can be chronic, with periods of improvement followed by flare-ups. (pdsa.org.uk)

Is pollen allergy the same as hay fever?

People often use the phrase “dog hay fever”, but the most common signs differ from the human condition.

Dogs may occasionally sneeze or develop watery eyes, but pollen allergy more often affects their skin.

Commonly irritated areas include:

paws
ears
face
muzzle
around the eyes
armpits
belly
groin
inner thighs
around the bottom

The skin may look:

red
flaky
sore
greasy
thickened
darker than normal

Some dogs appear extremely itchy even when the skin initially looks normal. (Blue Cross)

When is pollen season?

The precise timing varies according to:

weather
location
plant species
temperature
rainfall
wind

As a broad UK pattern:

tree pollen is often more prominent during spring
grass pollen usually becomes important during late spring and summer
weed pollen may continue into late summer and early autumn

The seasons can begin earlier, finish later or overlap.

Use the current Met Office pollen forecast rather than relying only on fixed calendar dates. The Met Office now provides five-day pollen forecasts covering the UK.

Signs of pollen allergies in dogs

Possible signs include:

scratching
paw licking
chewing between the toes
nibbling the legs
rubbing the face on furniture or carpet
rubbing or scratching the ears
head shaking
licking the belly or groin
red skin
rashes
hair loss
staining from saliva
recurring hot spots
recurring skin infections
recurring ear infections
watery or irritated eyes

The signs may initially be mild.

Repeated licking and scratching can then damage the skin, making bacterial and yeast infections more likely. Infection can increase the itching and create a cycle that becomes difficult to stop without treatment. (Blue Cross)

Paw licking

Paws are frequently affected because they come into direct contact with:

grass
plants
soil
pollen-covered paths

Look for:

redness between the toes
brown saliva staining
hair loss
swelling
broken skin
an unpleasant smell
discharge
pain when touched

Paw licking is not proof of a pollen allergy.

Other possible causes include:

grass seeds
harvest mites
cuts
broken glass
sore nails
infection
contact with chemicals
pain elsewhere in the foot

Check carefully without forcing your dog to tolerate painful handling.

Read Harvest Mites on Dogs and My Dog Stepped on Broken Glass when those hazards may be relevant.

Ear problems

Skin lines the ear canals so that allergic skin disease may affect the ears as well as the visible coat.

Possible signs include:

head shaking
scratching
redness
excess wax
discharge
an unpleasant smell
sensitivity when the ear is touched
holding the head differently

Do not insert cotton buds into the ear canal.

Do not use:

vinegar
essential oils
alcohol
human ear drops
medication remaining from an earlier infection
another pet’s ear cleaner

Recurring ear trouble may involve allergy, but it may also be caused or complicated by infection, ear mites, foreign objects or structural problems.

Blue Cross advises using only the ear-cleaning products recommended by your veterinary team and arranging veterinary help when an ear is painful or inflamed

Skin infection

Contact your vet promptly when the skin becomes:

wet or weeping
crusted
swollen
increasingly red
painful
smelly
covered in spots or pustules
hot to the touch

Also seek advice when your dog:

cannot settle
repeatedly wakes to scratch
stops enjoying walks
avoids being touched
appears generally unwell

Bacterial and yeast infections commonly complicate allergic skin disease and may need separate treatment. Simply attempting to block access to the skin does not resolve the underlying cause.

Pollen is not the only seasonal cause of itching.

Itching that begins during spring or summer may be connected to pollen, but the timing can also coincide with:

fleas
harvest mites
insect bites
grass seeds
increased outdoor activity
swimming
contact with plants
warm-weather bacterial or yeast growth

Your dog may also have a year-round allergy that becomes worse when pollen adds another source of irritation.

Veterinary dermatology sometimes describes this as an itch threshold. Several relatively small triggers may combine until the dog begins showing obvious symptoms.

Maintaining suitable flea control remains important even when pollen is suspected because additional flea irritation can worsen an existing skin problem.

Could it be a food allergy?

Food reactions can sometimes cause:

itchy skin
ear problems
digestive symptoms
vomiting
diarrhoea
reduced appetite
weight changes

However, you cannot diagnose a food allergy by changing randomly between brands or removing grain.

A dog may react to a particular protein or another dietary component rather than grain itself.

When a food reaction needs investigating, your vet may recommend a structured elimination diet using a suitable diet for a defined period. PDSA advises that a veterinary elimination trial commonly lasts between six and twelve weeks and must be followed carefully to provide useful information.

Do not begin by:

purchasing several “hypoallergenic” foods
removing grain without a reason
adding several supplements
feeding an unbalanced homemade diet
changing food every few days

Unplanned changes can make diagnosis more difficult.

My Dog Food and Nutrition Hub provides broader feeding information, but an individual allergy investigation should remain veterinary-led.

How vets investigate itchy skin

There is no single simple test that proves pollen is the cause of every itchy dog.

Your veterinary team may consider:

the dog’s age
breed and Health
when symptoms began
affected body areas
whether symptoms are seasonal
walking routes
flea and parasite prevention
diet
medication
previous ear or skin infections
other animals in the home

They may also check for:

fleas
mites
bacterial infection
yeast infection
ear disease
food-related reactions
another skin condition

Skin and blood allergy tests may help identify environmental allergens, particularly when immunotherapy is being considered. They are not completely reliable and are not always needed to establish the overall diagnosis.

PDSA explains that veterinary diagnosis commonly begins by ruling out more controllable causes such as parasites and food reactions.

Keep a symptom diary

A simple diary can help your vet identify patterns.

Record:

date
pollen forecast
weather
walking route
time spent in grass
whether your dog rolled or lay down
affected body areas
severity of itching
ear symptoms
skin changes
food and treats
parasite treatment
bathing or grooming
medication
photographs

Use the same simple rating each day.

For example:

0: no noticeable itching
1: occasional scratching
2: repeated scratching or licking
3: activity or sleep interrupted
4: skin damage or severe discomfort

This does not diagnose the problem, but it gives your veterinary team more useful information than trying to remember several weeks later.

Take photographs

Photograph the affected area when you notice:

redness
staining
hair loss
swelling
a rash
broken skin
changes inside the visible ear flap

Take photographs in similar lighting where practical.

Do not delay an appointment to obtain a better image.

A photograph cannot replace veterinary examination, but it may show how a flare-up changed between visits.

Check the pollen forecast.

The pollen forecast can help you plan around periods when symptoms have previously worsened.

It may influence:

route choice
whether you use a grassy park
the length of time spent in vegetation
when you open windows
whether the dog rests in the garden
how carefully you wipe the coat afterwards

Do not cancel all exercise solely because the forecast is high unless your vet has advised that approach.

Choose a lower-exposure route and provide suitable indoor enrichment when the usual walk needs adjusting.

Change the route rather than stopping every walk

In Finchley and Muswell Hill, routes can vary greatly.

A dog may encounter very different amounts of grass and vegetation when walking through:

Cherry Tree Wood
Coldfall Wood
Highgate Wood
the Parkland Walk
residential streets
paved local routes

When one grassy area repeatedly triggers symptoms, I would use another route rather than continuing through the same vegetation.

The dog still needs:

toileting
suitable movement
sniffing
routine
mental stimulation

A quieter pavement route with time to sniff may be more suitable during a flare-up than allowing the dog to push through long grass.

Avoid rolling in grass during a flare-up

Rolling can cover the coat, face and belly in pollen.

When grass contact is known to worsen your dog’s symptoms:

keep them closer on the lead
avoid recently cut grass
move past long vegetation
provide another safe sniffing area
choose clearer paths
avoid throwing toys into grass

This does not mean that every dog with itchy skin must avoid all grass permanently.

Management should be based on your dog’s veterinary plan and observed pattern.

Wipe your dog after walks

A clean damp cloth can help remove surface pollen from:

paws
lower legs
belly
chest
muzzle
outer coat

Use clean water and wipe gently.

Do not scrub sore skin.

Use a separate clean section of the cloth around the face.

Avoid putting water or products inside the ears.

Blue Cross recommends wiping the coat and paws after walks as one way to reduce pollen remaining on the dog.

Should you wash the paws after every walk?

A brief rinse may help some dogs where grass and pollen contact repeatedly triggers symptoms.

However, frequent washing can create problems when:

the skin is not dried properly
the area remains damp between the toes
unsuitable shampoo is used
already inflamed skin is rubbed
the dog becomes stressed by handling

Ask your veterinary team how often your dog should be rinsed or bathed.

Dry the paws gently and thoroughly, particularly between the toes.

Bathing an allergic dog

Your vet may recommend:

a soothing shampoo
a medicated shampoo
a particular bathing frequency
a specific contact time before rinsing
a conditioner or moisturising product

Use the instructions supplied for your dog.

Do not substitute:

human shampoo
baby shampoo
washing-up liquid
essential oils
tea tree products
homemade herbal rinses
shampoo prescribed for another dog

Blue Cross advises that medicated shampoos should be used under veterinary direction and rinsed thoroughly because remaining product can irritate the skin.

Wash bedding and soft furnishings

Pollen can remain on:

beds
blankets
sofa covers
car bedding
towels
soft toys

Wash suitable bedding regularly and allow it to dry completely.

Vacuum areas where your dog rests.

Use fragrance-free products where possible when perfumes or cleaning sprays appear to irritate the dog.

PDSA and Blue Cross both recommend regular bedding washing and household cleaning as part of reducing environmental exposure.

Grooming

Gentle grooming may help remove:

loose hair
pollen
dust
outdoor debris

Use a tool suited to your dog’s coat.

Stop when grooming causes discomfort or pulls at inflamed skin.

Do not clip a long-coated dog extremely short solely because they have a suspected pollen allergy. Coat length, temperature regulation, skin condition and breed needs should all be considered.

Ask your groomer and veterinary team to coordinate where the dog has an active skin problem.

Gardens and pollen

When your dog is affected by grass or weed pollen:

prevent rolling in problem areas
remove dense overgrowth where safe
keep the dog indoors while mowing
clear cut grass promptly
avoid leaving damp grass piles
wipe paws after garden access
keep resting places away from recently cut areas

Mowing can release pollen and plant particles into the air, so keep your dog away while the work is taking place.

Do not use weed killers or garden chemicals around your dog unless you have checked the product and followed the complete label instructions.

Keep parasite protection current.

Fleas may be difficult to see.

A dog can also be extremely sensitive to flea bites.

Discuss appropriate parasite control with your veterinary practice, particularly when:

the dog has allergic skin disease
several animals live in the home
an earlier product appears ineffective
you suspect mites
the dog swims regularly
another treatment is already being used

Do not combine products without advice.

Never use a dog-only product on a cat.

Read Fleas and Ticks on Dogs for the wider parasite guide.

Prevent self-trauma

Persistent scratching and licking can quickly worsen the skin.

Your vet may recommend temporary use of:

a recovery collar
suitable protective clothing
a paw covering
treatment to control the itch

These measures protect the skin but do not diagnose or treat the underlying cause by themselves.

Do not tightly wrap a paw or leave an improvised covering on without checking circulation, moisture and fit.

Contact your vet when your dog cannot stop damaging the area.

Do antihistamines work?

Antihistamines help some dogs but are not reliably effective for every dog or every type of allergy.

The correct product and dose depend on:

weight
health
other medication
the product’s additional ingredients
the suspected condition

Some human products contain ingredients that are unsuitable or toxic to dogs.

Only give an antihistamine when your veterinary practice has approved the exact product and dose for your dog.

Veterinary treatment

Treatment varies according to the dog and may include:

medication to reduce itching
treatment for bacterial or yeast infection
ear medication
topical skin treatments
prescribed shampoo
strict flea control
a veterinary elimination diet
essential fatty acids where suitable
immunotherapy in selected cases
management of known environmental triggers

There is no single treatment that suits every allergic dog.

The plan may also change over time as symptoms, seasons and secondary infections change. PDSA advises that dogs with allergic skin disease normally need an individual treatment plan rather than a standard remedy. (pdsa.org.uk)

Immunotherapy

When environmental allergens have been identified, your vet or veterinary dermatologist may discuss allergen-specific immunotherapy.

This involves exposing the dog to controlled amounts of relevant allergens to modify the immune response over time.

It:

works gradually
may need to continue for years
does not help every dog
may still need to be combined with other treatment

Allergy testing is generally needed when immunotherapy is being planned.

Do not use supplements without checking

The old version of this page recommended herbal and skin supplements.

That general recommendation should be removed.

Some supplements may be useful within an individual veterinary plan, but products vary in:

ingredients
concentration
quality
calories
interaction with medication
suitability for medical diets

Do not assume that a product is safe because it is described as:

natural
herbal
holistic
grain free
made for sensitive dogs

Tell your vet about every supplement your dog receives.

Grain-free diets

Do not switch to a grain-free diet solely because your dog has itchy paws or suspected pollen allergy.

Pollen allergy is an environmental reaction.

A food reaction requires a separate veterinary investigation.

Commercial grain-free foods may still contain ingredients to which an individual dog reacts, while removing grain does not establish whether food is involved.

Follow a structured veterinary elimination trial when a food reaction genuinely needs assessing.

Rescue and nervous dogs

A nervous dog may find repeated paw wiping, bathing or ear checks difficult.

Introduce handling gradually where possible.

You can:

show the cloth before touching
begin with one paw
keep sessions short
reward calm cooperation
stop before the dog becomes overwhelmed
avoid restraining them roughly
tell your vet about handling concerns

Pain can change behaviour.

A dog who normally accepts touch may growl or snap when their skin or ears are sore.

My Rescue Dog Support in Finchley focuses on low-pressure, predictable care for dogs who need more time and space.

How I adapt walks for a dog with pollen sensitivity

When an owner and veterinary team have identified a seasonal problem, I can adapt a solo walk by:

using paved or clearer routes
avoiding long grass
avoiding known problem areas
preventing rolling
shortening the route during a flare-up
allowing plenty of sniffing in lower-exposure areas
reporting paw licking or scratching
following the agreed after-walk routine

I do not diagnose allergies or choose treatment.

My role is to observe, follow the owner’s instructions and avoid unnecessary exposure where practical.

Because my solo dog walks begin at the client’s home and involve one household at a time, the route can be adapted around that individual dog.

When is it an emergency?

Most pollen-allergy flare-ups need a normal or prompt veterinary appointment rather than emergency treatment.

Seek immediate veterinary help when your dog develops:

breathing difficulty
sudden facial or muzzle swelling
collapse
severe weakness
widespread hives
repeated severe vomiting or diarrhoea
pale or blue gums
rapidly worsening symptoms

These can be signs of a severe allergic reaction rather than an ordinary seasonal skin flare-up.

Anaphylaxis is an emergency. Contact your vet immediately.

Frequently asked questions

Can dogs be allergic to pollen?

Yes.

Dogs can react to tree, grass and weed pollen. The most common sign is itchy skin rather than the sneezing and runny nose typically associated with human hay fever.

What do pollen allergies look like in dogs?

Possible signs include itchy paws, ears, face, belly, groin and legs. The skin may become red, flaky, greasy or sore, and repeated licking may lead to hair loss or infection.

Why does my dog lick their paws during summer?

Pollen is one possibility, but mites, grass seeds, infection, injury, pain or another allergy can also cause paw licking.

Arrange veterinary advice when the problem persists.

Can dogs develop pollen allergies later in life?

Yes.

Skin allergies can appear at different ages. A dog should still be examined because parasites, infection or another condition may also cause a new itch.

Does my dog need an allergy test?

Not always.

Your vet may first rule out parasites, infection and food reactions. Blood or skin testing may be considered when identifying environmental allergens that would affect treatment, particularly immunotherapy.

Can I give my dog a human antihistamine?

Only when your veterinary practice has approved the exact product and dose.

Some products are toxic or contain additional ingredients unsuitable for dogs.

Should I change my dog to grain-free food?

Not simply because they are itchy.

Pollen allergy is environmental, and food reactions cannot be diagnosed by automatically removing grain.

Should I wash my dog after every walk?

A damp-cloth wipe or brief rinse may help some dogs.

Frequent bathing with unsuitable products can irritate the skin, so follow your veterinary team’s advice about shampoo and frequency.

Can pollen cause ear infections?

Allergic skin disease can affect the ear canals and contribute to inflammation and recurring infections.

Ear problems still require veterinary examination because mites, foreign bodies, bacteria and yeast may also be involved.

Should my dog stop walking during pollen season?

Usually not.

Choose routes with less vegetation, avoid known triggers and provide suitable indoor enrichment when outdoor activity needs reducing.

Can pollen allergy be cured?

Environmental allergy is usually managed rather than permanently cured.

Treatment and exposure reduction can help control symptoms, although flare-ups may still occur. (pdsa.org.uk)

Can pollen make my dog sneeze?

It can, but itchy skin is more typical.

Persistent sneezing, nasal discharge, breathing changes or one-sided symptoms need veterinary assessment because other causes are possible.

Can cats have pollen allergies?

Cats can also develop environmental allergies and skin problems.

A cat who scratches, overgrooms, loses hair or develops sore skin needs veterinary assessment. Do not use a dog treatment on a cat.

For wider cat information, visit my Cat Care Advice Hub.

Look for the pattern without assuming the diagnosis

Seasonal timing can provide an important clue.

A dog who becomes itchy after particular walks or during the same months each year may be reacting to pollen.

However, itching remains a symptom rather than a diagnosis.

Keep a record.

Check the paws, skin and ears.

Change routes where practical.

Wipe away surface pollen gently.

Prevent self-trauma.

Most importantly, involve your veterinary team before using medication, changing the diet or buying supplements.

The right plan should address the complete dog rather than treating every seasonal itch as hay fever.

For wider seasonal guidance, visit Seasonal Pet Safety in Finchley.

Veterinary disclaimer

This article provides general information about pollen, itching and allergic skin disease in dogs.

It does not diagnose an allergy, identify a trigger, prescribe medication or replace examination and advice from a veterinary surgeon.

Veterinary surgeons diagnose illness and prescribe treatment under the Veterinary Surgeons Act 1966 and related professional rules.

Contact your veterinary practice when your dog develops persistent itching, painful ears, damaged skin, infection or another concerning change.

Seek emergency veterinary help for breathing difficulty, sudden facial swelling, collapse or a rapidly worsening allergic reaction.