If a small amount of bleeding exists from a scratch by a domestic cat, first rinse the wound thoroughly with soapy water and squeeze out the dirty blood. Then disinfect the wound with iodophor or 75% alcohol. The wound is usually open and not bandaged for blood drainage. Because cats can carry rabies virus, even if a domestic cat has been vaccinated against rabies, it is not absolutely guaranteed to be safe. After being scratched, the rabies vaccination should be administered promptly after the wound is treated, usually on the same day, or within 48 hours if it is not possible. After vaccination, you should pay attention to your daily diet, avoid smoking and alcohol, avoid seafood and spicy and stimulating foods such as chili, hot pot, ginger and garlic, drink more water and take rest. Avoid strenuous exercise. In addition, cats are the main source of infection of cat-scratch fever, which can be spread through scratches and bites Hanseatic Baltons causing cat-scratch fever. If one or more erythematous papules appear locally on the wound, a few can turn into blisters or pustules, which can also break down to form ulcers. The bite site appears swollen lymph nodes, with redness, swelling, heat and pain in the lymph nodes. In some patients, the lymph nodes may become purulent and general discomfort such as fever may occur. Patients need to go to the hospital promptly if the above-mentioned manifestations occur.