Mouth ulcer lymph node pain is considered to be the lymph node pain caused by the spread of inflammation after the aggravation of mouth ulcers. Under normal circumstances, mouth ulcers basically do not lead to lymph node pain, but if the mouth ulcers are more serious, caused by bacterial infection, the spread of inflammation to the lymph nodes may lead to lymph node inflammation, lymph node swelling symptoms, and therefore will induce lymph node pain. Some patients with oral ulcers lymph node pain can be treated with anti-inflammatory drugs under the guidance of a doctor, such as amoxicillin, metronidazole, etc., and also need to pay attention to oral hygiene, and timely replenishment of vitamins and proteins and other substances that the body lacks. If there is any discomfort during the treatment process, you need to consult a doctor in time.