Furuncle is a suppurative inflammatory skin disease caused by Staphylococcus aureus invading the deep part of skin hair follicle and surrounding tissues. Treatment should be combined with the severity of the boil. In general, most furuncles can gradually heal without medication; If the furuncle is serious or shows severe pain, it needs to be treated with drugs. Common drugs include ichthyol ointment, iodine tincture, mupirocin ointment, ibuprofen, paracetamol and other pain relievers, as well as cephalosporins, penicillin and other antibiotics. In private, do not use your hands to pick and squeeze, or use any tools to prick the boil, so as to prevent the spread of infection. If the boil breaks by itself, disinfect the lesion with iodophor and cover it with sterile gauze.