How many days the tongue ulcer can be healed, mainly according to the size of the ulcer, part of the 5-10 days or so can be healed, some must be treated to be healed. If you bite yourself when chewing, the ulcer is relatively small, generally about 5 days can be healed; there is a category of people who often have ulcers, related to the immune system or endocrine, repeated ulcers are generally almost 7-10 days; there is also a kind of ulcers on the tongue are malignant tumors caused by ulcers, basically can not be self-healing. For the ulcers that can not be healed by themselves and for a longer period of time, it is necessary to go to the hospital for medical treatment. Through the examination of the ulcer can be found, usually the surface of the infection, the depth of the ulcer is uneven, so usually have to take a biopsy, for pathological examination. Tongue ulcers can eat more fresh vegetables and fruits, supplement vitamin B2 and zinc gluconate. Exercise is suitable to choose easy and gentle, not too much activity projects, regulate the heart and lungs, improve the function of internal organs, but also help to enhance the immune function of various tissues and organs.