There are the following possibilities: 1. impetigo, which is caused by infection, this disease can cause other people to get infected, so it is necessary to isolate from other people when treating it, and it needs to be treated with oral antibiotics, such as cephalosporins or azithromycin; topical creams can be used, such as clindamycin phosphate gel, mupirocin ointment, ofloxacin gel, erythromycin ointment; 2. folliculitis, which may occur Folliculitis can occur in youth until old age. You can use topical anti-inflammatory ointments, such as Fuqing ointment, clindamycin phosphate gel, compound polymyxin B ointment, etc.