Patients with mouth ulcers who keep drooling in their mouths at night can be given general treatment, medication, and physical therapy. Mouth ulcer patients have been drooling in the mouth at night is mostly due to the pain of ulcers stimulate the mouth, resulting in increased saliva, need to be treated for mouth ulcers in order to improve the situation. 1. General treatment: do not eat spicy stimulating food in daily life, eat more vitamin-rich fruits, regular work and rest, avoid staying up late. 2. Medication: anti-inflammatory drugs can be used, such as sodium carboxymethylcellulose, sorbitol, etc. Other anti-inflammatory and pain-relieving drugs in different forms, such as ointment, gargle, tablets, etc., can be used to protect the surface of the ulcer, reduce pain, and can also prevent secondary infections, and promote the healing of the ulcer. Can also supplement the right amount of vitamins, trace elements, etc. . 3. You can use laser, microwave and other therapeutic instrument or intraoral ultraviolet irradiation to reduce exudation and promote ulcer healing. When mouth ulcers have been drooling, it is recommended to go to a regular hospital for examination and treatment, under the guidance of a professional doctor for scientific treatment. Blind self-medication should be avoided.