Impetigo, also known as impetigo, is caused by Staphylococcus aureus infection, which is a bacterial infection. Treatment mainly involves the use of anti-bacterial drugs, and those with less lesions can be treated with topical drugs, commonly used drugs such as fusidic acid cream and Bactrim, which are best applied topically in small amounts once in the morning and once in the evening, and need to be continued for three days after improvement. For serious cases, oral antibiotic treatment is needed, mainly oral cephalosporin, penicillin drugs. The oral medication should be accompanied by topical medication. After stopping the oral medication, the topical medication should be continued for one week. Because the lesions are broken, it is important to avoid contact with water to avoid aggravation of the infection. Do not pick and scratch the lesions with your hands to avoid inoculation to the normal skin.