Mouth ulcers with back pain are not directly related to each other and need to be treated separately. Mouth ulcers need to pay attention to daily diet, local medication to relieve; back pain need to pay more attention to rest, for the cause of the disease through life care, physical therapy, medication and other ways to deal with, it is recommended to consult a doctor in a timely manner. Mouth ulcers accompanied by back pain, indicating that the body exists in the mouth ulcers and back pain two conditions, the two are not related, they will not cause each other, so to be treated separately. 1. Mouth ulcers may be related to diet, immunity, genetics and other factors, patients should first pay attention to diet light, nutrition, pay attention to rest, moderate exercise. Can be used locally mouth ulcer loose, watermelon cream and other drugs. Drugs need to be used under the guidance of a professional doctor. 2. Back pain may be related to daily bad posture, chronic strain, fasciitis, ankylosing spondylitis and other factors, you can rest temporarily, less use of the back, correction of bad posture, with hot compresses, baking electricity, spectrum instrument and other physical therapy, pain is serious, you can take ibuprofen and other anti-inflammatory drugs. Drugs need to be used under the guidance of a professional doctor. Mouth ulcers accompanied by back pain may also have other causes, symptoms should be promptly go to the regular hospital, the doctor according to the condition to determine the treatment program, guide the use of drugs.