The ulcers at the corners of the mouth may be caused by viral infections or inflammation, or may be due to micronutrient and vitamin deficiencies. 1. Viral infections: viral infections lead to herpes on the skin, herpes appears in the corners of the eyes or mouth will appear as clusters of blisters, blisters break down in the form of ulcers. It is recommended to carry out antiviral treatment, you can use metformin powder topical application of treatment, and pay attention to drink a lot of water, avoid spicy, cold and cold food. 2. Inflammation: Inflammatory infections lead to ulcers at the corners of the mouth and eyes, it is recommended to take amoxicillin capsules orally and use ofloxacin eye drops. Daily diet is light, do not smoke and drink. 3. Trace elements and vitamin deficiency: some patients will have skin eruptions at the corners of the eyes or mouth due to the lack of vitamins or trace elements. It is recommended to take oral zinc gluconate, while taking vitamin B. You can also use multivitamins for oral supplementation of treatment, and apply anti-inflammatory ointment to the corners of the mouth. When the corners of the mouth corners of the eye ulcers, should be timely to the hospital, so as not to cause serious complications, but also to enhance the body’s resistance, to ensure adequate sleep, is conducive to the healing of the disease, the use of drugs need to follow the doctor’s instructions.