What are the three most common dog allergies?

Food allergies, flea allergies, and environmental allergies. They show up differently — food allergies usually involve gas, vomiting and diarrhoea alongside itching; flea allergies cause dermatitis from saliva exposure; environmental allergies depend on what’s in the dog’s surroundings, indoors or out.

What are the signs of a food allergy in dogs?

Gas, vomiting and diarrhoea are the headline symptoms. Skin signs include itchy or oozing skin, red irritated eyes, nasal discharge, coughing or sneezing (sometimes asthma), inflamed ears, and swollen paws. A dog can develop an allergy to food they’ve eaten for years without trouble.

Why do flea bites cause dermatitis?

It’s not the bite itself but the flea’s saliva that triggers the allergic skin reaction. The skin becomes irritated, the dog itches and chews, the area becomes raw and painful — and the dermatitis can persist long after the fleas themselves have been eliminated.

How do I tell if my dog has an environmental allergy?

Look at the timing. Seasonal flare-ups point outdoors — pollens, grasses, mould. Year-round symptoms point indoors — dust, household chemicals, smoking, artificial fabrics, air fresheners. Keep a clean home, avoid smoking near the dog, use an air purifier, and bathe with a natural paraben-free shampoo.

How do I find a food allergy?

By process of elimination. We recommend feeding a well-balanced homemade raw diet as a starting point, then introducing other foods gradually. Rotating protein sources helps, as does strictly limiting or eliminating grains. An elimination diet under veterinary guidance is the gold standard.

What treats the skin damage from allergies?

Keeping the skin clean while the barrier recovers, and protecting the broken areas. We used to answer this by saying the range is 100% natural and kills the yeast on damaged skin; both halves have been withdrawn. The liquid products contain phenoxyethanol and other synthetic ingredients, printed on the label, and we do not claim our products kill organisms — washing removes surface grease and debris mechanically, which is a different thing. If a vet has diagnosed a yeast overgrowth, ask about a chlorhexidine-based shampoo, which has the best evidence in canine dermatology and which we do not sell. There’s a Dermagic product suited to each allergy-related complaint, and you’re welcome to call us for help choosing.

The Three Most Common Dog Allergies and How to Treat Them

Name: Dermagic Europe
Address: Eurobase House, 312 Cork Rd, IDA Industrial Estate, Waterford, X91 EH5N, IE
Telephone: +44 7425 388643

November 29, 2013 · Dog Allergies, Skin Conditions, Care Guides, Dermagic UK

Food allergies, flea allergies and environmental allergies in dogs — how to spot each one, find the root cause, and treat the skin damage naturally.

If you think your dog has an allergy, the only way to manage it is to find the root cause. The three most common dog allergies are food, fleas and environment — here’s how to recognise each, and what to do.

Why the root cause matters

If your dog is itching, breaking out, or losing hair, treating the visible symptom won’t get you very far on its own. The skin keeps reacting until the underlying trigger is identified and reduced.

The three most common allergies in dogs are:

Food allergies
Flea allergies
Environmental allergies

Each presents differently. Each needs a slightly different approach.

1. Food allergies

The main symptoms of food allergies are gas, vomiting and diarrhoea — but the picture often includes a number of other signs:

Itchy or oozing skin
Red, irritated eyes
Nasal discharge
Coughing or sneezing; sometimes asthma
Inflamed ears
Swollen paws

Dogs can develop allergies to food they’ve been fine with for years. Finding the culprit is a process of elimination.

We recommend feeding a well-balanced homemade raw diet as a baseline, then introducing other feeds gradually. Rotating protein sources is a good practice, as is strictly limiting or eliminating grains.

2. Flea allergies

Flea allergy causes dermatitis — but it isn’t the bite itself that does it. It’s the flea’s saliva.

The saliva causes a strong inflammatory reaction in flea-sensitive dogs. Once it starts, the dog itches, the area becomes raw and painful, and the dermatitis can persist long after the fleas themselves have been cleared.

Because it is an allergy rather than bite trauma, the severity tracks the dog’s sensitisation rather than the flea count — which is why a flea-allergic dog can be badly affected while you cannot find a single flea.

The first step is rigorous flea control, and that means a prescription product from your vet; the second is treating the damaged skin so it can heal. Our full account is flea allergy dermatitis in dogs and cats, which covers the prevalence figures, the distribution patterns and the home remedies that do not work.

3. Environmental allergies

Environmental allergies (also called atopy) can be triggered by an almost endless list of things:

Grasses and pollens
Mould
Dust and dust mites
Household chemicals and cleaning products
Cigarette smoke
Artificial fabrics

The timing tells you where to look. Seasonal symptoms usually point to outdoor triggers like pollen or grasses. Year-round symptoms point to something indoors — bedding, fabrics, cleaning products, smoke.

To reduce environmental triggers:

Keep a clean home — vacuum regularly, wash bedding weekly
Avoid smoking near your dog
Use an air purifier in the rooms they spend most time in
Bathe in an all-natural, paraben-free shampoo like the Dermagic Shampoo Bars rather than a perfumed supermarket product

On that last point, one honest qualification: the reason to prefer a short-ingredient bar for an allergic dog is the fragrance and the dyes, which have a real contact-allergy record, not the parabens — which do not. Our bars are paraben-free and we will keep saying so, but we are no longer going to pretend that is the part doing the work. Parabens and SLS in dog shampoo has the numbers, including which preservatives actually sensitise.

Treating the skin

Once the trigger is being managed, the next job is treating the physical skin damage. Allergic skin is broken skin — and broken skin gets colonised by yeast and bacteria that make the problem worse.

This paragraph used to say the range is “100% natural and gets deep into the skin to kill the yeast that’s taken hold.” Both halves have been withdrawn. The range is not 100% natural — the liquid shampoo and conditioner contain phenoxyethanol, and the conditioner also contains propylene glycol, triethanolamine and a synthetic conditioning agent, all printed on the label. And we do not claim our products kill anything: a shampoo that cleans skin is not an antifungal treatment, and where there is an established infection that is a veterinary diagnosis.

What the range does do is keep the surface clean and support the barrier while it recovers, with a product suited to each kind of complaint — from active hot spots to chronic dry, scaly skin. If a vet has diagnosed a yeast overgrowth, ask them about a chlorhexidine-based shampoo: that is the topical with the strongest evidence behind it in canine dermatology, and it is not something we sell.

Start the treatment DERMagic Skin Rescue Lotion Shop on dermagic.eu →

If you need help selecting the right Dermagic product for your dog, email customerservice@dermagic.eu or call us on +44 7425 388643.

Frequently asked questions

What are the three most common dog allergies?: Food allergies, flea allergies, and environmental allergies. They show up differently — food allergies usually involve gas, vomiting and diarrhoea alongside itching; flea allergies cause dermatitis from saliva exposure; environmental allergies depend on what’s in the dog’s surroundings, indoors or out.
What are the signs of a food allergy in dogs?: Gas, vomiting and diarrhoea are the headline symptoms. Skin signs include itchy or oozing skin, red irritated eyes, nasal discharge, coughing or sneezing (sometimes asthma), inflamed ears, and swollen paws. A dog can develop an allergy to food they’ve eaten for years without trouble.
Why do flea bites cause dermatitis?: It’s not the bite itself but the flea’s saliva that triggers the allergic skin reaction. The skin becomes irritated, the dog itches and chews, the area becomes raw and painful — and the dermatitis can persist long after the fleas themselves have been eliminated.
How do I tell if my dog has an environmental allergy?: Look at the timing. Seasonal flare-ups point outdoors — pollens, grasses, mould. Year-round symptoms point indoors — dust, household chemicals, smoking, artificial fabrics, air fresheners. Keep a clean home, avoid smoking near the dog, use an air purifier, and bathe with a natural paraben-free shampoo.
How do I find a food allergy?: By process of elimination. We recommend feeding a well-balanced homemade raw diet as a starting point, then introducing other foods gradually. Rotating protein sources helps, as does strictly limiting or eliminating grains. An elimination diet under veterinary guidance is the gold standard.
What treats the skin damage from allergies?: Keeping the skin clean while the barrier recovers, and protecting the broken areas. We used to answer this by saying the range is 100% natural and kills the yeast on damaged skin; both halves have been withdrawn. The liquid products contain phenoxyethanol and other synthetic ingredients, printed on the label, and we do not claim our products kill organisms — washing removes surface grease and debris mechanically, which is a different thing. If a vet has diagnosed a yeast overgrowth, ask about a chlorhexidine-based shampoo, which has the best evidence in canine dermatology and which we do not sell. There’s a Dermagic product suited to each allergy-related complaint, and you’re welcome to call us for help choosing.

#Dog Allergies #Food Allergies #Flea Allergy Dermatitis #Environmental Allergies #Atopy #Dog Itching