The treatment of lip ulcers can be localized with anti-inflammatory drugs, analgesic drugs, drugs to promote healing, etc., as follows. 1. Anti-inflammatory drugs: such as cediriodine tablets, compound cortical powder, ice boron powder and other dispersions, chlorhexidine, povidone-iodine and other gargles, which can alleviate inflammation and prevent secondary infection. 2. Analgesic drugs: Lidocaine gel or spray can achieve analgesic effect through local anesthesia to the lesion area. 3. Promote healing drugs: Rehabilitation of new liquid, recombinant human epidermal growth factor gel, etc. can promote the healing of ulcers. All of the above drugs should be used under the guidance of a doctor, and it is recommended to go to a regular medical institution to receive professional targeted treatment.