Job’s tears, also known as Coix lacryma, cold dampness can drink red beans and Coix lacryma water, Coix lacryma should be fried and boiled with red beans in water, there is a role for water permeation and permeability of dampness, which can improve the evidence of cold dampness and so on. Red beans and Job’s tears are plant-based Chinese medicine, red beans are flat, have heat detoxification (remove body heat and poisonous evil), the effect of qi and blood. Job’s tears are good for water permeability and dampness, spleen and stop diarrhea, raw and cool, after frying the nature of the calm, its effect is unchanged. Cold dampness can drink red beans and barley water to drink, note that Coix Seed should be fried and boiled water, can improve the cold dampness and edema, spleen deficiency and diarrhea (spleen function weakness leading to diarrhea) and other evidence. The adverse reactions, contraindications and precautions of red beans are not yet clear. The adverse reactions and contraindications of Coix lacryma are not clear at present, and the precautions are caution for pregnant women. Cold and damp people dietary contraindication to eat cold and cold food, daily attention to keep warm. It is difficult to play its full efficacy, red bean barley water to dispel cold dampness effect is weak, such as cold dampness evidence is serious, to be in the physician’s diagnosis under the guidance of the treatment.