Wuyu is an alternative name for snakehead fish, and its effects are to tonify the spleen, benefit the stomach, and relieve water retention and edema (to facilitate urination and eliminate water retention). It is used as a treatment for edema and scabies, and is also useful for treating dampness paralysis and foot fungus. Channa maculata is sweet in taste and cold in nature, it belongs to a kind of traditional Chinese medicine and enters the spleen, stomach, lung and kidney meridians; Channa maculata has the effect of inducing diuresis and tonifying the spleen; it is used to treat the treatment of girdle and foot fungus, swelling of the face and eyes, paralysis of dampness, and the treatment of scabies and oedema in pregnancy. The adverse effects of Channa maculata are not precise and the contraindications are not clear; it should be noted that for people with cold spleen and stomach (spleen and stomach weakness and cold), it is advisable to add ginger and pepper for flavoring and sex. Chinese medicines and proprietary Chinese medicines are recommended to be used under the guidance of a professional Chinese medicine practitioner to identify the symptoms, and individuals should not use them blindly to avoid adverse consequences.