笔者常收到全国各地大批来信，因工作忙只能选取其中具有代表性的，在专栏上回答。近来河南、广东、浙江等省读者多次来信问及田七的使用方法。现一并答复如下。田七又名三七、田三七，是五加科人参属三七的根，主要产于广西、云南、四川、湖北、江西等地，深山中也有野生田七? I often receive a large number of letters from all over the country. I can only select representative ones because of my busy work and answer them in the column. Recently readers of provinces such as Henan, Guangdong, and Zhejiang have repeatedly sent letters to ask about the use of Tian Qi. The reply is as follows. Tianqi, also known as March 7 and Tian Sanqi, is the root of the ginseng of Panax ginseng. It is mainly produced in Guangxi, Yunnan, Sichuan, Hubei and Jiangxi. There are also wild fields in the mountains.