Tang Banxia, ​​commonly known as medicine dog egg, is an ancient name for the variety of authentic medicinal materials produced under the specific human and geographical conditions of Tanghe. Pinellia is a perennial herb of the genus Araceae. The mid-summer of the Tang Dynasty is a perennial herb of the genus Araceae, which has the effects of dampness, phlegm, phlegm and phlegm, and eliminates phlegm and stasis. It mainly treats genital warts, chills, vomiting, chest, chest, and plum qi.