Catitis is a common skin disease in cats. If a cat develops catia, symptoms such as hair loss, scabs, redness, swelling, itching, and dandruff will appear. It is usually in patches. If not treated in time, it will Expand slowly. Cat moss is easily contagious and can also be transmitted to other pets and family members at home, so it is best to keep the cat in isolation and spray it on time every day. It will recover in about a month.