Boils and carbuncles are mainly characterized by pimples, rupture and pus, fever and headache. 1. Papule: It starts as a follicular inflammatory papule, and then gradually increases in size and becomes a red hard nodule with pain and tenderness. 2. Bursting pus: after 2~7 days, the nodules become pus and necrotic and form pus ulcers, with necrotic pus plugs in the center. After the pus plugs are broken, pus, pus plugs and necrotic tissues can be discharged. 3. Fever, headache: patients often have fever, headache, discomfort and other symptoms of systemic inflammatory reaction, which may be accompanied by swelling of nearby lymph nodes. When skin carbuncles and boils appear, you can take amoxicillin, cefaclor and other antibiotics, and use mupirocin ointment, erythromycin ointment and other antibiotic-containing ointment to treat. If the redness is more pronounced, topical ichthyol ointment can be used to promote abscess formation. After abscess formation, surgical incision can be performed to drain out the pus, necrotic tissue, and regular dressing change treatment.