After the mouth ulcer has a small bump, can be treated by medication and surgery. 1. medication: mouth ulcers after a small bump, generally no pain and other uncomfortable symptoms do not need to worry too much, usually can take anti-inflammatory drugs to treat, such as metronidazole, amoxicillin, etc., you can also use saline to rinse the mouth. 2. Surgical treatment: after the mouth ulcer is well, there is a small lump, may be due to a long time bite and stimulation of cysts and other conditions, should be timely to the regular hospital for surgical excision treatment. Mouth ulcers after a small pimple patients, it is recommended to go to the hospital in a timely manner, clear the cause of the disease according to the doctor’s guidance for standardized treatment. During the treatment period to maintain oral hygiene, do not eat spicy stimulating food.