Dampness causes disease divided into internal dampness and external dampness, usually walking in the rain, or staying in a humid environment for a long time, seen as head swelling and pain, chest tightness, mouth not thirsty, body heavy and painful, fever and weakness or head heavy as a wrap. Damp injury to the joints can lead to joint pain and unfavorable flexion and extension, so you can drink water with Qiangwu. Internal dampness is also divided into cold dampness, which is generally a symptom of spleen deficiency caused by an uncontrolled and irregular diet or excessive consumption of raw and cold fruits and vegetables. It can be seen as abdominal distension, abdominal pain, loss of appetite, unformed stools, nausea and vomiting, light mouth and no thirst, heavy head and body, ashen face or swollen and little urine. Excessive consumption of oily food and alcohol can produce damp-heat, which can lead to abdominal distension, loss of appetite, itchy skin or body heat ups and downs, sweating without relief of heat.