The address is located at No.2 Mengzhuiwan East Street, chenghua district, Chengdu, Sichuan. Granny Cheng's hot compress ointment makes drugs penetrate into the body from pores, helping the body to recover its function. Drugs help drugs with heat, and the two complement each other, promoting the dredging of meridians, harmonizing veins, regulating viscera, balancing yin and yang, dispelling wind and cold, and smoothing qi and blood, which is beneficial to the absorption and regression of hematoma.