The canker is a kind of hair follicle inflammation, is a deep purulent infection of multiple adjacent hair follicles and surrounding tissues, generally due to staphylococcal infection. 1, Western medicine treatment: in the treatment of the first is active anti-infection treatment, can use penicillin, sulfonamides and vancomycin and other drugs, local can use 50% magnesium sulfate hot and wet compress, promote the inflammation of the subside. If the infection spreads over a large area or if necrotic tissue appears in the center, surgical incision and drainage treatment is required. 2. Chinese medicine treatment: Chinese herbal medicine can be used to clear heat and detoxify swelling. Since canker sores can cause sepsis, septicemia, or even life-threatening conditions, patients should seek medical attention as soon as they are found to avoid delaying the condition and should not be squeezed by hand at home. Diabetic patients are at high risk for canker sores due to their lowered immune system, so if you have diabetes, you should lower your sugar level.