The pain of inner thigh grinding is mainly due to overly obese wearing tight pants, the skin and pants for repeated friction resulting in pain. In clinical treatment, you need to apply topical oil with moisturizing and nourishing, such as petroleum jelly oil or zinc oxide oil, to play the therapeutic effect of moisturizing, moisturizing, reducing friction and relieving pain. At the same time, if the rash is bright red in color, you can choose Qingpeng ointment or Damphenol ointment which has the effect of clearing heat and detoxifying, to play the therapeutic effect of clearing heat and detoxifying, cooling blood and relieving pain. Severe cases can be combined with oral intake of Yiqing capsule or Shuanghuanglian oral liquid to enhance the effect of fire reduction and detoxification.