The main meridians of Hou Pu are the spleen, stomach and large intestine meridians. This drug has a strong qi-movement effect, so it can be used to promote qi circulation in people with irregular bowel movements, abdominal pain and bloating. Some people have weak spleen, stomach and dampness in the middle jiao, Hou Pu has a good effect of drying dampness, through drying dampness can indirectly achieve the effect of strengthening the spleen, can relieve dry dampness and eliminate phlegm, down the gas and calm asthma, if phlegm drink obstructs the lung, lung Qi does not descend, cough, etc., can be used together with Su Zi, Chen Pi, Half Xia, etc., the effect will be better.