Cellulitis is usually a severe purulent infection due to bacterial infection of the skin tissue, as well as the soft tissue of the skin tissue extending into the subcutaneous dermis. Therefore, the management of cellulitis is usually treated with antibiotics, usually either amoxicillin or cefixime for oral administration, or roxithromycin for oral administration. For topical, if there is no pus, you can usually use Longzhu ointment or fusidic acid cream for topical application. If there is inflammation and pus formation, an incision must be made to drain the pus. Usually the pus is drained by a cross-shaped incision, and the incision must be followed by timely drainage.