A week before the menstrual period oral ulcers are currently no effective method of eradication, mainly through local medication to symptomatic treatment, commonly used drugs, including anti-inflammatory drugs, analgesic drugs, drugs to promote healing, etc., as follows. 1. Anti-inflammatory drugs: tretinoin ointment, iodine tablets, mycobacteria tablets, and so on. 2. Analgesic drugs: Lidocaine gel, spray, benzocaine gel, etc. It should be noted that it is only used when the pain is unbearable to prevent addiction. 3. Drugs to promote healing: recombinant human epidermal growth factor gel, recombinant bovine basic fibroblast growth factor gel, rehabilitation of new liquid, etc.. Drugs should be used under the guidance of a doctor, and it is recommended to go to the hospital to receive regular targeted treatment. The above medicines should be used under medical supervision.