Mouth ulcers can not be directly sprinkled with salt, it is recommended that the patient can take medication. Patients with oral ulcers, directly on top of the oral wound salt may aggravate the symptoms of pain, and salt will also produce stimulation of the oral ulcer wound, not only will affect the wound healing, but also may aggravate the symptoms of oral ulcers, so oral ulcers, avoid spreading salt on the wound. Patients with mouth ulcers can use painkillers such as compound benzocaine gel and lidocaine gel under the guidance of doctors. For patients with severe mouth ulcers, immunizing agents such as thalidomide and levamisole need to be used as prescribed by the doctor. Patients with mouth ulcers can not be salt on the surface of the wound, it is recommended that patients should seek medical attention in a timely manner, you can choose the appropriate measures for treatment under the guidance of the doctor. In addition, patients usually need to keep their mouths clean, and their diets need to eat vitamin-rich fruits and vegetables, such as oranges, bananas, bok choy, cabbage and so on.