The color, luster and texture change of the lips can reflect the health condition of the body. Normal lip color is mostly pink, if the red color is too bright or deep purple-red, that is, the lips are flushed. In general, it may be caused by what is commonly known as “fire” in the body, such as with bad breath, erratic, indicating damp heat in the spleen and stomach; with the two dampness and pain, anorexia indicates that the liver fire is too strong. Pathological conditions, such as inflammation of the oral mucosa, or bacterial infectious diseases, cardiovascular diseases, digestive system diseases, etc. can also be accompanied by the appearance of the symptoms. Food therapy and health care experts say that often change the variety of dishes, pay attention to the color and flavor of the dishes to enhance the appetite of patients. Ensure that the patient has sufficient protein intake, often consume pork, beef, rabbit or chicken, duck and poultry. Avoid foods that are not easily digestible, eat more boiled, stewed and steamed foods and eat less fried foods. Eat more vitamin-rich sparse vegetables, fruits and other foods that help to fight cancer, such as asparagus, kelp, seaweed, onion, garlic, mushroom, etc. Food is mainly plant food, and vegetables, fruits, cereals (cereal food) and beans should account for more than 2/3 of the total food in daily food. Regular and appropriate exercise, preferably every day should be brisk walking for 1 hour or similar exercise (exercise food). Swimming or jogging should be done for 1 hour every week. Eat more vegetables, fruits, yellow-green and fruits contain a lot of vitamin A, vitamin C, vitamin E and beta-carotene, which can prevent cancer. The diet should be light, do not eat spicy and stimulating food, and eat more fresh vegetables and fruits and nutritious and easily digestible food. In addition, patients should pay attention to reasonable rest and maintain a regular schedule of life and rest. The mucosal scabs of the mouth and lips caused by various reasons should be properly treated to avoid wound infection. Meanwhile, patients should strengthen the functional exercise of neck rotation and mouth opening after radiotherapy to reduce the occurrence of neck muscle fibrosis and mouth opening difficulties.