Pepper belongs to the category of warming herbs in traditional Chinese medicine, with a pungent flavor and hot nature, and belongs to the stomach and large intestine meridians. It has the effects of warming the middle and dispersing cold (dispersing cold evils by warming the spleen and stomach with medicines), lowering the qi and eliminating phlegm. It is used for stomach cold and vomiting, abdominal pain and diarrhea, loss of appetite, epilepsy and phlegm. 1. Warming the middle and dispersing cold: the stomach is the main receptor (accepting accommodation) and putrefaction (initial digestion of food, forming food waste) of water and grains, when cold evils invade the spleen and stomach, the physiological function of the stomach will be affected, resulting in vomiting, abdominal pain, diarrhea, etc. Pepper is hot in nature, and it can be used to dispel cold evils through the efficacy of warming the interior and dispersing cold to protect the internal organs. 2. Lowering qi and eliminating phlegm: the spleen is the main transport (the spleen has the function of digesting food, absorbing food essence and water and transferring it to the whole body), the spleen is the source of phlegm, qi stagnation affects the transport function of the spleen and stomach, and the abnormal transport of water and liquids coagulates into phlegm, and phlegm and qi stagnation causes epilepsy, and pepper improves the physiological function of the spleen through regulating the spleen and stomach, thus treating epilepsy phlegm and so on. It should be noted that pepper is contraindicated for people with yin deficiency and fire exuberance. When the body is not feeling well, it is recommended to go to the hospital and choose medication under the guidance of the doctor, not self-medication.