Flea allergy dermatitis (FAD) is a skin condition in cats. It's caused by an allergic reaction to cat flea saliva. When a flea bites, it injects saliva. This can trigger an allergic reaction in sensitive cats.
What Are Allergies?
Allergies happen when the immune system sees some substances as harmful. These substances, known as allergens, cause the immune system to react.
Types of Allergies in Cats
- Contact allergies
- Inhalant allergies
- Food allergies
- Flea allergies
In areas with lots of fleas, flea allergies are common.
Signs of Flea Allergy Dermatitis
Cats with FAD may scratch a lot or lose hair. The scratching isn't always linked to many fleas. Just one bite can cause a reaction in sensitive cats.
Common Symptoms
- Scratching
- Skin lesions
- Flea dirt
- Overgrooming
- Restlessness and irritability
Lesions often appear on the cat's head, neck, back, and base of the tail.
Diagnosing Flea Allergy Dermatitis
Vets suspect FAD based on the signs. Finding fleas or flea dirt confirms it. If not, blood tests and skin tests can help confirm the diagnosis.
Treating Flea Allergy Dermatitis
Treatment involves two steps:
1. Removing Fleas
Vets may recommend spot-on liquids or oral meds to remove fleas. Repeat treatments might be needed. For kittens, chemical treatments may be risky, so manual removal is advisable.
2. Managing Symptoms
- Soothing Baths: Specialized shampoos can soothe itching.
- Antibiotics: Used if the skin gets infected.
- Steroids: Reduce inflammation and itching.
Home Treatments for Flea Allergy Dermatitis
Home remedies like oatmeal baths can help temporarily. Hydrocortisone sprays offer relief but should avoid open wounds.
Preventing Flea Allergy Dermatitis
Keep your cat on flea preventives. Options include:
- Spot-On Liquids: Easy to use and affordable but may leave greasy spots.
- Oral Medications: Fast-acting with long effects but tricky to administer.
- Flea Collars: Long-lasting but not ideal for outdoor cats.
FAQs
Is Flea Allergy Dermatitis Common?
It depends on where you live. Flea presence varies.
Can Humans Get Flea Allergy Dermatitis?
No, but fleas can still bite people.
How Long Does FAD Last?
With treatment, symptoms should resolve in days. Without it, they can last for months.
Do Allergy Shots Work for Cats?
Allergy shots don't work for every cat. They're not commonly recommended.