Instructions
Use an insecticide on your cat like lufenuron, fipronil or imidacloprid in the case of fleas. This can be in the form of a spot-on treatment, oral regulator, spray or injection. You will need to use an adulticide, which kills adult fleas on your pet, combined with an insect growth regulator, which stops flea eggs from hatching.
Control the itching, scratching and consequent self-harm done with a topical treatment containing hydrocortisone in the case of hives appearing on the skin from allergies. Using a topical treatment like Ivermectin will kill skin parasites like ear mites. You can also use topical flea treatments in the form of flea drops rubbed onto the skin of the cat.
Start feeding your cat a hypoallergenic diet in the form of home-cooked meals. This tests your cat for food allergies, which reactions to food, additives, preservatives and chemicals can cause. If you have been feeding your cat the same diet for many weeks, it may be the culprit.
Test your cat for allergic reactions to dust and pollen. Your veterinarian can do this. Put your cat on vaccine therapy if airborne particles are to blame. Treat your cat with the drug Atop, putting it on a course of antihistamines and essential fatty acids. The cat will also need long-term corticosteroids.
Put your cat on a course of antibiotics if necessary. Discuss this with your vet.
How to Cure a Cat's Itchy Skin
Itchy skin manifests itself in cats in different forms. Miliary dermatitis is when the coat becomes greasy and dandruff filled. Linear granulomas are vertical stripes of crusty skin that can appear under the chin or down the hind leg. Rodent ulcers affect the upper lip and Eosinophilic plaques are areas of red skin usually on the trunk of the body. Hair loss may be present along with excessive itching or scratching.