When the Shaoyin pulse is slippery and rapid, sores will develop in the yin region. For sores that erode and ulcerate in the yin region, wash with Langya Decoction.

Langya formula for decoction
Langyathree liang
Take one ingredient, boil with four sheng of water until reduced to half a sheng. Use a silk thread wrapped like a cocoon, soak in the decoction, and apply to the yin region, repeating four times a day.