One day you notice more scratching than usual. Then comes the paw licking. Now it’s time for the odd ear infection. Sounds familiar?
Allergies in dogs can be common but aren’t always obvious. The good news is that once you understand the patterns, allergies are usually manageable. Let’s walk through what to look for and what you can do about it.
What are the signs of allergies in dogs?
Unlike humans, dogs rarely show allergies through sneezing or runny noses. Instead, it’s their skin that can give us the first clue. Typical allergy symptoms in dogs include:
- Persistent itching or scratching
- Red, inflamed skin
- Frequent ear infections or head shaking
- Licking or chewing paws
- Hair loss or bald patches
- Hot spots (angry, moist patches of skin)
- Scooting or rubbing against furniture
Think of it this way: if your dog seems itchy more often than not, something isn’t quite right. Also, do their symptoms keep coming back or reemerge at certain times of year? If so, allergies are a strong possibility.
Common dog allergies
Allergies in dogs can have different causes. Below are the ones vets see most often in their clinics.
Flea allergy dermatitis
One of the most prevalent causes of itching in dogs, flea allergy dermatitis isn’t about having lots of fleas – it’s about being sensitive to their saliva, which triggers the allergic reaction.
Flea allergy in dogs tends to cause intense itching, particularly around:
- The base of the tail
- Lower back
- Inner thighs
You might also see scabs, redness, or bald patches from the scratching and chewing.
Environmental and seasonal allergies
Dogs can react to many of the things present in our environment that we also react to, like:
- Pollen from grass, trees, and weeds
- Dust mites
- Mould spores
Some dogs only struggle at certain times of year, most typically, in spring and summer, when pollen levels rise. This is known as seasonal allergies or ‘dog hayfever’. Others may show symptoms all year round, especially if dust mites are involved.
Atopic dermatitis
You might have heard this term from your vet. It’s essentially the medical name for ongoing environmental allergies. It tends to show up in specific areas:
- Paws (constant licking or chewing)
- Ears (recurrent infections)
- Belly and groin
- Around the eyes and muzzle
Here, we’re looking at dogs that have a long-term pattern of flare-ups rather than a one-off or purely seasonal reaction. In other words, it refers to a chronic, recurring form of allergic skin disease.
Food allergies
Dogs and food allergies is a much-discussed topic, as nutrition plays an essential role in your pet’s overall health and wellbeing. While food allergies are less common than environmental ones, they do happen and can be hard to pinpoint. Common food allergens in dogs include:
- Beef
- Chicken
- Dairy
- Eggs
- Wheat, soy and corn
Diagnosing a food allergy takes patience. The most reliable method is an elimination diet, where you:
- Feed a very limited, controlled diet
- Stick to it strictly for several weeks
- Gradually reintroduce ingredients to identify the trigger
An elimination diet for dogs needs to be carefully planned and monitored by a vet, as the process is highly individual.
Allergy vs intolerance
This is an important point when considering food as a trigger, since it’s easy to mix these reactions up:
- A food allergy involves the immune system and often shows up as skin issues.
- A food intolerance is more likely to cause digestive problems.
As symptoms can sometimes overlap, we recommend discussing any skin and/or stomach issues with your vet. If both are present, food may be worth investigating further.
How to treat allergies in dogs
There’s rarely a single quick fix for allergies. Instead, the most effective approach is to identify and avoid the trigger where possible, alongside a combination of changes that support your dog’s skin, immune system, and overall comfort.
Flea and tick prevention
If your dog’s allergy is flea saliva, keeping up with regular flea control is the most effective way to prevent reactions. But even when flea allergy dermatitis isn’t the problem, vets recommend year-round parasite protection, so it should be a part of every dog’s health routine. If you need advice on the right preventative care for your dog, we have a great guide on getting rid of fleas for good.
Diet changes
Diet is a great place to start when looking to improve your dog’s skin or stomach issues. Sometimes, even without a confirmed food allergy, dogs may still benefit from switching to a more sensitive or hypoallergenic formula, particularly if their symptoms are persistent.
Switching to a hypoallergenic dog food can:
- Reduce exposure to potential triggers
- Support skin health
- Help calm inflammation over time
- Offer digestive relief
Look for clearly labelled ingredients and protein sources your dog hasn’t had before, such as salmon, turkey or duck, since these are often used as alternative proteins and may be less likely to trigger a reaction.
Some of the tried-and-tested options our resident vet recommends are:
Royal Canin Hypoallergenic Adult Dry Dog Food
This food contains a hydrolysed (broken down) soya protein isolate, which helps reduce the risk of an allergic reaction. It’s a highly digestible formula enriched with Omega-3 fatty acids, a natural anti-inflammatory.
Hill’s Prescription Diet z/d Food Sensitivities Dry Dog Food
This range contains a single hydrolysed source of protein to avoid adverse reactions, a blend of prebiotic fibres to improve digestion, and essential fatty acids combined with vitamin E for targeted skin care.
Purina Pro Plan Veterinary Diets HA Hypoallergenic Dry Dog Food
Formulated with a single protein source that is hydrolysed into very tiny components to prevent allergic reactions. It contains purified carbohydrates to reduce the risk of sensitivities and Omega-3 fatty acids for their anti-inflammatory properties.
James Wellbeloved Grain-Free Adult Dry Dog Food – Turkey & Veg
A naturally hypoallergenic recipe made with turkey and free from many common allergens such as beef, pork, soya, eggs, dairy, and wheat. It’s easy to digest and formulated to provide complete and balanced nutrition. Also available with Fish & Veg.
As for hypoallergenic treats, there are plenty of options available, too. From Royal Canin Hypoallergenic Dog Treats and Hill’s Hypoallergenic Treats to Arden Grange’s Crunchy Bites range.
Skin care
Topical care can make a noticeable difference, particularly during flare-ups. Gentle, soothing shampoos and treatments are great to have on hand, since they can help:
- Calm irritated skin
- Restore the skin barrier
- Wash away allergens like fleas or pollen
Some of the shampoos we can vouch for are Douxo S3 Calm Shampoo and Burt’s Bees Oatmeal Dog Shampoo, both designed for sensitive skin that needs protection and repair.
To help soothe and protect itchy paws, products like Douxo S3 Care Pads for Pets and Burt’s Bees Paw & Nose Dog Lotion are often used alongside other treatments. It’s worth noting that itchy paws can also be caused by a bacterial or fungal infection – in which case these products may help provide some relief, but veterinary treatment may also be needed.
Supplements
Omega-3 fatty acids are one of the most widely recommended ingredients for dogs with allergies. Commonly found in fish oils, they work by:
- Repairing the skin barrier
- Reducing itching and inflammation
- Improving coat condition
They’re not an overnight fix, but over time they can make a difference. Two high-quality options you can trust are Pooch & Mutt Salmon Oil and the YuMOVE Skin & Coat Support range.
What about allergy tablets?
You might be wondering about antihistamines or other medications. These can be useful in some cases, and your vet may recommend them, particularly during severe flare-ups. That said, many owners focus on longer-term management through diet and skin care, which can help reduce reliance on medication over time.
Can dog allergies be cured?
While allergies cannot usually be cured, they can often be successfully managed with consistent care and by avoiding triggers, helping many dogs live comfortably with minimal symptoms.
When you suspect allergies, a visit to the vet should be the first step in identifying the problem. Once you start to piece together the cause, things usually get a lot easier. Whether it’s tweaking their diet, improving their skincare routine, or simply recognising seasonal patterns, small changes can give your dog the happy, carefree life they deserve.
