Just like people, cats can struggle with environmental allergies — and one of the most common allergic conditions we treat at Grace Animal Hospital is atopic dermatitis. This chronic skin condition occurs when a cat’s immune system overreacts to everyday substances like pollen, dust mites, or molds, leading to persistent itchiness and skin irritation.
If your feline friend is grooming excessively, losing hair, or showing signs of discomfort, allergies may be the cause.

What Is Atopic Dermatitis in Cats?

Atopic dermatitis (sometimes called feline atopic skin syndrome) is an allergic reaction to environmental allergens that would normally be harmless. Cats with this condition are often sensitive to things like:

  • Grass and plant pollens
  • Dust and dust mites
  • Mold spores

When exposed to these allergens, the immune system becomes overly reactive, triggering inflammation and itchiness.

Common Signs to Watch For

Cats tend to hide discomfort well, so the symptoms of atopic dermatitis can be subtle. Some cats never scratch in front of their owners — but their skin tells the story.

You may notice:

  • Excessive licking, chewing, or rubbing
  • Hair loss, especially on the belly, sides, or legs
  • Red, irritated, or thickened skin
  • Scabs or crusts from over-grooming

Even if you don’t see your cat scratching, unexplained hair loss alone can be a sign of atopic dermatitis.

How We Diagnose Atopic Dermatitis at Grace Animal Hospital

Many different skin conditions can look similar, so the first step is ruling out more common causes of itchiness — such as parasites or infections.

Your veterinarian may recommend:

  • Skin scrapings to rule out mites
  • Cytology to check for bacterial or yeast infections
  • Flea control to eliminate flea-related allergy flare-ups

Once other conditions are ruled out, we can determine whether atopic dermatitis is the underlying cause.

Allergy Testing

If we confirm that your cat has atopic dermatitis, allergy testing may help identify the specific triggers. There are two types:

  1. Intradermal allergy testing – tiny amounts of allergens are injected into the skin to check for reactions.
  2. Blood allergy testing – measures antibodies to various environmental allergens.

It’s important to know that these tests do not diagnose atopic dermatitis — instead, they’re used to develop customized allergy treatments like immunotherapy.

Treatment Options to Help Your Cat Feel Better

Atopic dermatitis can’t be cured, but it can be managed. Our goal at Grace Animal Hospital is to reduce flare-ups, minimize discomfort, and help your cat enjoy a normal, itch-free life.

1. Medications for Itch Relief

Several medications can help reduce inflammation and itching, including:

  • Antihistamines
  • Steroids (cortisone-based medications)
  • Cyclosporine

Not every medication works for every cat, and some may cause side effects. We’ll work with you to find the safest, most effective option.

2. Immunotherapy (Allergy Injections or Drops)

This is one of the most effective long-term treatments for environmental allergies. Immunotherapy involves:

  • Creating a personalized formula based on your cat’s allergy test results
  • Giving small doses of allergens to desensitize the immune system

Over time, immunotherapy can decrease flare-ups and reduce the need for medications. Many cats stay on immunotherapy long-term, but frequency often decreases after improvement.

Atopic Dermatitis in Cats - Vet…

How Grace Animal Hospital Helps Your Cat Thrive

Managing feline allergies requires a thoughtful, tailored approach. At Grace Animal Hospital, we focus on:

  • Identifying your cat’s triggers
  • Reducing symptoms quickly
  • Creating sustainable long-term relief
  • Providing ongoing care and follow-up as needed

Your cat doesn’t have to live with constant itchiness — relief is absolutely possible with the right treatment plan.

When to Schedule a Visit

Call us if your cat is:

  • Over-grooming or losing patches of fur
  • Scratching, chewing, or rubbing their skin
  • Experiencing repeat skin infections
  • Showing changes in coat quality or comfort

Early intervention makes a world of difference.