A three-yellow antipruritic liniment and preparation method

The invention relates to an external-use liniment of a pharmaceutical composition and a preparation method thereof, and specifically relates to a Sanhuang antipruritic liniment and its preparation method. Calculated by 1000 total weight account, the liniment provided by the invention comprises the following raw medicines of: by weight, 20-30 parts of sophora flavescens, 20-30 parts of rheum officinale, 20-30 parts of Baikal Skullcap Root, and 20-30 parts of Cortex Phellodendri. The preparation method provided by the invention comprises the following steps of: mixing the above raw medicines according to the above weight portions, crushing to fine powders, sieving through a sieve and mixing uniformly; adding 3-10 parts of fully swelled carboxymethylcellulose sodium, adding 5-15 parts of melted phenol, uniformly stirring, and adjusting the total amount to 1000 weight portions by adding water. The Sanhuang antipruritic liniment provided by the invention has functions of clearing heat, detoxifying, inducing astringency and relieving itching, can be used to treat skin diseases such as skin redness, hot itching and exudation in the acute phase due to the toxic heat of the skin, has not only a heat-clearing effect but also a convergence effect, and is suitable for various skin injuries with a few exudation in the acute phase; in addition, the Sanhuang antipruritic liniment is a pure traditional Chinese medicinal preparation, is safe to use with no stimulation, can be used for a long time, and has a low price.