Mouth ulcers on the throat are usually painful and obvious, mostly recurrent aphthous ulcers, may also be caused by trauma, the main treatment for avoiding irritants, local pain relief, containing mouthwash and so on. Ulcers clinical treatment is often to reduce pain, promote healing, prolong the recurrence period as the principle of treatment. 1. Avoid stimulating factors: try to eat less hard food, less swallowing, swallowing will cause pain. 2. Local pain relief: applying diluted lidocaine to the affected area is beneficial to pain relief. 3. Contain mouthwash: such as 0.1% potassium permanganate solution, chlorhexidine solution and so on. Mouth ulcers on the throat is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.