How long it takes to boil Chinese medicine is based on the different nature and efficacy of the drugs. 1. Nature: for some gold and stone drugs, such as dragon bones, oysters, andrographis paniculata, etc., whose ingredients are more difficult to precipitate, it is generally recommended to simmer for 30 minutes in advance or even longer, and then decocted with other medicines; for some aromatic drugs, such as sand nuts, cardamom, etc., you need to put it down in the first 5-10 minutes of the drug simmering can be; for the ordinary drugs, it is generally recommended to decoct for 30 minutes or so. For common medicines, it is generally recommended to decoct for about 30 minutes. 2. Efficacy: for the relief of the class of traditional Chinese medicine, it is generally recommended that the decoction time as short as possible, such as commonly used Yin Qiao San, etc., it is recommended that the decoction 10 minutes, the taste of medicine can be out; but for the tonic class of traditional Chinese medicine, such as tonic Chinese medicine, such as tonic soup, eight Zhen Tang, etc., to be boiled for a long time, boiled on high heat after the fire with the gentle fire and slowly simmering to simmer for about one hour and then drink. For some tonic medicines, the boiling time should be even longer, especially for poultices such as tortoise jelly, Colla Corii Asini Paste, Eight Treasures Paste, etc., which should be boiled for a long time until they become paste. Decocting Chinese medicine is recommended to be applied under the guidance of a professional Chinese medicine practitioner to avoid affecting the efficacy of the medicine.