Red beans and coix seed are sacred products for detoxification. Red beans contain protein, vitamins (A, B, C), plant saponins and aluminum. Minerals like copper. Conducive to diuresis, detumescence, detoxification and pus discharge, clearing away heat and promoting diuresis. Coix seed and red bean soup is the best medicine to treat damp evil. The best thing for patients is to go back and cook barley and red bean soup as tea. Coix seed and red beans can enhance renal function and have the effect of clearing heat and diuresis, so they are also effective for edema patients.