If your cat has ringworm around its mouth, you need to clean the affected area promptly. 95% of the fungi appearing on a cat's mouth are Microsporum canis. First, take preventative measures to avoid infecting family members. Apply a cat-specific spray to the mouth area, and after spraying, help your cat wear an Elizabethan collar to prevent it from licking off the spray.
Treatment of ringworm on a cat's mouth to prevent infection: When ringworm appears on a cat's mouth, the owner needs to isolate the cat immediately and avoid close contact with the elderly and children, as their weakened immune systems make them more susceptible to ringworm. 
Environmental disinfection: Owners need to clean and disinfect their homes regularly, using environmental disinfectant sprays to spray indoor items. Easily washable items should be washed and sun-dried to prevent the proliferation of fungi and their potential spread to humans, thus avoiding cross-infection. Localized shaving: If a cat has ringworm around its mouth, the owner needs to clean the area promptly and shave the affected area. If the ringworm patches are small and haven't spread to other parts of the body, localized shaving is sufficient.
Antibacterial treatment: The appearance of ringworm symptoms in cats may be due to the owner not providing timely nutritional supplements during the feeding process. Cats with weaker constitutions need timely supplementation of nutrients, such as trace elements and vitamins, which can promote the recovery of cats with ringworm.
Because ringworm is located near the mouth, it's recommended to wear gloves and apply a generous amount of the cat-specific spray to your hands, spreading it evenly over the entire affected area. Immediately after application, put on a collar to prevent the cat from licking it. If the ringworm patch is very close to the mouth and can be licked, multiple applications may be necessary, or you can soak cotton balls in the spray and attach them to the patch with adhesive tape to prevent licking. With consistent use, the ringworm treatment will improve.
