Dampness in the body is caused by the deficiency of Yang in the spleen and kidney and the dysfunction of water-dampness transportation. Clinical manifestations of dietary reduction, gastric fullness, loose stools, or even nausea and vomiting, sticky mouth without thirst, or thirst for hot drinks, body fatigue, or even swelling. Peppercorns in water can be used for abdominal pain, diarrhea and other people caused by spleen deficiency, cold and damp, but the tea can play a limited medicinal effect, can not replace the medication to treat the disease. If there is a need for medication, it is recommended to use under the guidance of a professional physician, not blindly self-medication.