When a cat is infected with feline distemper, it will show symptoms such as vomiting, diarrhea, and lack of energy. It is usually caused by fungal or bacterial infection or infection by other cats. After the owner finds out, he should isolate the cat and take the cat to the pet hospital for examination and treatment. During this period, thoroughly clean and disinfect the home environment and items used by cats to prevent secondary infections. Pay attention to cat diet management and feed more nutritious food to promote the cat's physical recovery.