2. Eel belongs to Syngnathidae, Syngnathidae and Monopterus. Also known as eel, mackerel, eel, snake fish, eel, blood eel, common fish, long fish (northern Jiangsu area). A general term for about 15 species of slender eel-shaped fishes of the order Syngnathidae. There are two kinds of distribution in China, one is the common Monopterus albus, and the other is Monopterus albus, which is only distributed in Longchuan County, Yunnan Province, but not in other parts of China.
Monopterus albus is not only a delicacy on the table, but also its meat, blood, head and skin have certain medicinal value. According to Compendium of Materia Medica, Monopterus albus has the functions of enriching blood, invigorating qi, diminishing inflammation, disinfecting and removing rheumatism. Monopterus albus is sweet and warm in nature, and has the effects of tonifying the middle energizer and nourishing the blood, and treating asthenia. It can be used as medicine by the people to treat asthenia, cough, body itching due to damp heat, hemorrhoids and fistula, intestinal wind, hemorrhoids and leakage, deafness and other symptoms. The head of Monopterus albus is burnt to ashes and served with warm wine on an empty stomach, which can cure the hard pain of women's mammary nucleus. Its bone is used as medicine, and it also treats scabies, and the curative effect is quite remarkable. Its blood drops into the ear and can treat chronic suppurative otitis media; Dropping into the nose can cure epistaxis (nosebleed); Especially for external use, it can treat facial paralysis and facial paralysis. Some people say that "eels are eye drops", and people who suffered from eye diseases in the past all know that eating eels is good. Eating eel often has a strong tonic function, especially for people who are weak, sick and postpartum. Its blood can also treat mouth and eye deviation. Traditional Chinese medicine believes that it has the health care functions of invigorating qi and nourishing blood, warming yang and strengthening spleen, nourishing liver and kidney, expelling wind and dredging collaterals.
Eel serum is toxic, but the toxin is not heat-resistant, and can be destroyed by gastric juice and heating. Generally, it will not be poisoned when cooked and eaten. Whether the folk use of eel blood to treat diseases is caused by the action of toxins in blood remains to be further studied.
The blood of Monopterus albus is toxic. Eating it by mistake will stimulate the oral cavity and digestive tract mucosa, seriously damage the nervous system, make people numb, and die of respiratory and circulatory failure.