Ulcers often occur in the oral cavity, digestive system, cornea, etc. Different treatment methods need to be selected according to the occurrence of the site, and the main treatment is medication, and appropriate medication should be selected according to the cause of the disease. I. Oral mucosal ulcers: mostly caused by infection, immunity and other factors, can be treated with anti-infection, immunosuppressants or Chinese medicine. B vitamins can be supplemented in appropriate amounts, and Chinese herbal medicines can also be used for treatment, such as tintype san, watermelon cream, etc. In the case of severe aphthous ulcers, local closure treatment as well as laser treatment can also be performed. Second, the peptic ulcer: most occur in the stomach or duodenum, the two treatment is similar. 1, acid suppressants: commonly used drugs are omeprazole, pantoprazole, rabeprazole, etc.; 2, gastric mucosal protective agents: commonly used clinical drugs are magnesium aluminum carbonate tablets, bismuth pectin, etc.; 3, promote healing class: clinical also often use rehabilitation new liquid, compound glutamine particles and other drugs to promote healing for treatment; 4, gastric power Drugs: If patients have symptoms such as nausea, vomiting and abdominal distension, suggesting delayed gastric emptying and bile reflux, they can be given gastric power drugs, such as domperidone tablets, mosapride, etc.; 5. Antibiotics: If peptic ulcer combined with Helicobacter pylori infection is found, a full course of quadruple therapy is required. Third, corneal ulcers: often caused by infection, ulcerative keratitis, can be treated for the pathogenic bacteria. If it is a bacterial corneal ulcer, it needs to be treated with a sensitive antibiotic. If it is a viral corneal ulcer, chlortetracycline with subconjunctival injection of interferon can be used. In the case of fungal corneal ulcers, natamycin drops may be used in combination with oral antifungal medications. In patients with severe corneal ulcers, lamellar corneal transplantation is required.