Treatment methods for cat flea allergy dermatitis:

1. Find the allergen in time. This may take a little time and effort, but it is also very important. As long as you spend some time and careful investigation, you can keep your cat away from allergic dermatitis.

2. Take a bath and disinfect. Give the cat a bath, then scrub or spray the surface with 0.5% bleach to kill germs in the skin and blood.

3. Seek medical treatment promptly. Send to the hospital in time for injection treatment, and then apply ointment externally, so that the cat can recover as quickly as possible and avoid the pain caused by skin diseases.

4. Disinfect cat equipment. The eating utensils used by cats and the mattresses in the cat's nest should all be cleaned and disinfected, and dried in the sun until the cat's skin disease is cured.

5. Regular disinfection. After the cat's skin disease is cured, you should also insist on bathing and disinfecting the cat regularly to prevent germs from reproducing and harming the cat's health.