Adhering to take red beans and barley water for about 1 week can play the effect of dampness detoxification. Red beans and barley water has the effect of clearing heat and detoxification, reducing swelling and dampness, strengthening the spleen and stomach. Adhering to taking red beans and barley water for 1-2 weeks can play the role of dampness detoxification. If the patient’s dampness is heavy and the course of the disease is long, it needs to be taken for 3-6 months to gradually show results. Red beans and barley water can also store into the gastrointestinal tract peristalsis, play a role in weight loss, but should be combined with dietary control and reasonable exercise to achieve the purpose of weight loss. In addition, red beans and barley are rich in vitamin A, vitamin B1, protein and potassium, phosphorus, calcium and many other trace elements, which are beneficial to health. Blindly taking red beans and barley water can lead to diarrhea. It is recommended that patients with heavy dampness should first visit the Chinese medicine department, and get the maximum effect by treating the symptoms after the identification of Chinese medicine.