Mouth ulcers mouth feel like spitting fire that is, there is a burning sensation, the treatment method for local medication, including analgesic drugs, anti-inflammatory drugs, glucocorticoid drugs, as follows. 1. Analgesic drugs: you can use lidocaine gel or spray, benzocaine gel, etc., through local anesthesia to achieve analgesic effect. 2. Anti-inflammatory drugs: such as gargling chlorhexidine solution, topical rubbing tretinoin ointment, taking cedirizine tablets and so on. 3. Glucocorticoid drugs: local use of tretinoin oral paste, dexamethasone ointment, betamethasone gargle, etc.. 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 treatment.