Lichen planus is a characteristic purplish-red papule and maculopapule, and it is a chronic skin disease. This damage can be seen not only in the mouth, but also in the genitals, nails or toenails. However, this situation is relatively rare, and middle-aged female patients are more common in the disease population. Let me introduce it to you: 1. Pay attention to diet in daily life. Some small dietotherapy can be used to treat diseases. Boiling garlic with peanuts is a good choice. First, put peanuts and garlic in a crock and boil them in water. Simple and convenient, and can be taken two or four times. 2. Another way is to use mung bean and egg drinks. First, take mung beans and eggs, stir the eggs into paste, add water to mung beans, put them on the fire and burn them until they are half cooked, and then take the plumeria with boiling water. You can eat it twice every morning and evening. This method is a good way to treat oral lichen planus. 3. There is also meat food, namely pork oyster soup. Take dried oyster meat and lean pork, cook soup with clear water, and season with appropriate amount of salt. The food has the effects of nourishing yin, nourishing blood and moistening dryness, and can also be used for treating toothache due to deficiency fire and mucosal erosion. 4. You can also try the method of cooking lean meat with willow roots. Boil the soup with willow roots and lean pork, add the right amount of water and put some salt. Eat soup and meat. This dietotherapy has the effects of dispelling pathogenic wind, clearing away heat, nourishing yin, moistening dryness, reducing swelling and relieving pain, and can also treat oral lichen planus. When oral lichen planus is in a stable state, it has no effect on the life and work of patients. A few patients can recover from mucosal lesions after treatment. People with oral lichen planus can drink more water and eat more fruits and vegetables.