Liver preservation and nourishment can be improved through daily diet, paying attention to hygiene, physical exercise and quitting smoking and drinking. 1. Daily diet: It is recommended that patients maintain a light and refreshing diet, reasonably match the diet, try not to eat greasy food, and do not eat spicy and stimulating food. 2. Pay attention to hygiene: the liver of patients with liver disease is in a state of damage, the body’s immunity decreases, it is easy to let a variety of pathogenic microorganisms to take advantage of the situation, it is easy to appear a variety of infectious diseases. Therefore, you should do a good job of protection, especially pay attention to personal hygiene. 3. Exercise: It is recommended that patients participate in sports activities, which can effectively enhance the patient’s physical fitness and avoid recurrent episodes of liver disease. 4. Quit smoking and drinking: drinking alcohol may lead to alcoholic hepatitis and fatty liver, smoking will also affect the liver, it is recommended that patients quit smoking and drinking in time during the period of liver protection. It is recommended that patients usually take medicines under the guidance of doctors and do not take any medicines without authorization. Because the drug and the drug will have an effect on each other, it is possible to affect the liver metabolism ability.