Skin ulcers may be caused by skin infections, suppurative sweating and other diseases, and can be treated with ointments that promote wound healing and antibiotic creams. 1. Skin infection: when the wound is not properly treated, it may lead to bacterial infection of the skin, so that the skin appears to be ulcerated, the early stage of the formation of ulcers can be local topical antibiotic ointment, such as erythromycin cream, fusidic acid cream, etc., ulcers can be used to promote the healing of ointment, such as recombinant human epidermal growth factor gel, rehabilitation of the new liquid, etc., to promote the repair of the cell regeneration, so as to accelerate the healing of the ulcer surface. 2. Septic Sweatshirt: Septic Sweatshirt may be related to obesity, immune disorders, genetics and other factors, manifested as one or more hard subcutaneous nodules appearing on the skin, with the development of the disease, the nodules deep pus, to the surface of the breakthrough, thus forming an ulcer. It can be treated with topical antibiotic ointment, such as clarithromycin ointment, erythromycin ointment, etc. It can also be treated with topical compound resorcinol cream. All of the above drugs have adverse reactions and are recommended to be used under the guidance of a doctor. If the patient’s skin ulcer symptoms are serious, or the symptoms persist and have not improved, it is recommended to go to the hospital in time for treatment.