Diarrhea is mostly caused by spleen and stomach qi deficiency. People with deficiency of spleen and stomach can take Bupi Yichang Pill from Chen Liji, while those with deficiency of stomach yin are less, which can be decocted for conditioning. 1, basic principles of diet aftercare. Diet should be regular, three meals should be regular and quantitative, and overeating should not be allowed; Usually eat more digestible food, such as porridge, porridge and so on. Eat less irritating and indigestible food, such as hot and sour, fried, hard and sticky food, and try to eat less raw and cold food. 2. Common food for strengthening the spleen and nourishing the stomach. ① Japonica rice is flat and has the function of invigorating spleen and benefiting qi. If the spleen and stomach are weak, you can eat more yellow things, such as corn, potatoes, crucian carp soup, coix seed and so on. They are very good choices for regulating the spleen and stomach. If you don't want to go to so much trouble, you can take Cordyceps job's tears cream directly. In fact, the weakness is that the function is not strong. Knowing the reason is simple, or easy to digest. It's best to add something to replenish the spleen and stomach, such as barley, buckwheat, oats, red dates and so on. To every meal. Try not to eat cold, hard and exciting things. Eat some digestible fish for meat and eat less for other meat.