Because the underarm area has hair and is prone to humidity and sweating, plus activity, there is always some friction, and if you do not pay attention to hygiene, it is easy to develop folliculitis, etc. in the underarm area. Folliculitis in the underarm area is mainly manifested as inflammatory papules and pustules distributed along the hair follicles, and this area can be painful because of the frictional sweating. If not properly cared for, it can further develop into a serious infection such as boils or even cysts. It is treated mainly with topical medications, paying attention to the cleanliness of the skin. Topical medications such as fusidic acid soft (cream) ointment or mupirocin ointment are more effective. If it is more serious, you can take oral anti-inflammatory drugs, such as roxithromycin.