Direct4Pet, one of the country’s largest online veterinary approved pet retailers, is backing Allergy Awareness Week by highlighting the main causes of allergies and intolerances in our pets so that dog and cat owners can take measures to help with or prevent symptoms. 

Allergies are primarily caused by an overreaction or failure of the body to process specific proteins or environmental factors. An intolerance occurs when the body cannot properly digest or absorb a specific ingredient, often due to a lack of necessary enzymes (like lactase for milk). 

The causes of these reactions typically fall into three main categories:

Food Triggers

Most food allergies are caused by animal proteins that the pet has been exposed to for a long time. Common allergens for dogs can be beef, dairy, chicken, wheat, and soya. In cats it can be beef, fish, chicken, and dairy products. Many adult pets can also be lactose intolerant as they lose the enzyme (lactase) needed to break down the sugars in cow's milk, leading to digestive upset. 

Pets with food allergies may exhibit symptoms such as itching, skin redness, gastrointestinal upset, and even chronic ear infections. Identifying food allergies in pets often requires a process of elimination through specialised diets or allergy testing. Once diagnosed and working with a vet, managing food allergies typically involves transitioning the pet to a hypoallergenic or limited ingredient diet that eliminates the offending allergens. There are a number of hypoallergenic diets which Direct4Pet supply online. 

Environmental Allergens 

These are reactions to substances inhaled or absorbed through the skin, similar to "hay fever" in humans. Triggers can include pollen and grasses in the spring and summer months that often cause itchy skin or paws. House dust mites found in bedding and carpets can also be a trigger along with mould spores common in damp environments or specific seasons. 

Parasites and Irritants

Coming into contact with fleas and ticks can also trigger a severe reaction in pets as can contact with certain irritants such as wool bedding, plastic food bowls or certain shampoos.

Helping your pet feel better during allergy season starts with minimising their exposure to allergens and supporting their skin and immune health. After outdoor walks or playtime, wiping down your pet’s paws and coat with hypoallergenic pet wipes can go a long way in reducing allergens. Bathing them weekly with a gentle, anti-itch shampoo—especially one with soothing ingredients like oatmeal or aloe—can also relieve irritation and wash away allergens trapped in their fur.

Flea prevention is another essential step. Spring is high season for fleas and ticks, and flea allergy dermatitis is one of the most common causes of severe itching in pets. Be sure your pet is on a consistent flea and tick preventative, whether it’s a monthly chew, topical treatment, or flea-repelling collar.

Supplements can also play a powerful role in managing allergies. Omega-3 fatty acids, found in fish oil, help improve skin health and reduce inflammation, making them a great addition to your pet’s daily routine. Allergy support chews that contain natural ingredients like quercetin, colostrum, or nettle leaf may also help reduce histamine responses and provide relief from itching. Don’t forget about probiotics, either—supporting your pet’s gut health can strengthen their immune system and make them less reactive to allergens overall.

At home, creating a clean, allergy-safe environment can make a huge difference. Using an air purifier with a HEPA filter can reduce the number of airborne allergens in your pet’s living space. Washing pet bedding, blankets, and toys regularly—and vacuuming often—will help keep dust and pollen from building up indoors. On high-pollen days, it’s a good idea to keep windows closed and limit time spent in grassy or wooded areas.

In severe cases of allergies and intolerances always consult a vet.  As a UK-based, RCVS-registered veterinary pharmacy and pet-care retailer, Direct4Pet provides a full range of products — prescription medicines, food, supplements, accessories and everyday essentials — all overseen by qualified veterinary professionals. Products to cater for these needs can be found on the online store.

For further information on Direct4Pet visit: www.direct4pet.co.uk