The inner wall of the mouth is bitten by itself, if the wound is small it can be treated by antibacterial gargle, spray and other disinfection, if the wound is large then it needs to be sutured to stop bleeding treatment. The inner wall of the mouth is bitten by itself, if the wound is small, first choose antibacterial effect of mouthwash, such as compound chlorhexidine, povidone iodine and so on. At the same time with the spray, such as stomatitis spray to promote wound healing, according to the general treatment of mouth ulcers can be. If the wound on the inner wall of the mouth is relatively large, you need to go to the hospital in time for wound suturing to stop the bleeding, and at the same time, under the guidance of the doctor to take amoxicillin, vitamin B2 and other antibiotics for treatment, to avoid infection and scarring. The inner wall of the mouth was bitten by himself if there is no bleeding or bleeding is not serious, then self-treatment, if the bleeding is serious should go to the hospital in time for treatment.