Drug composition: Angelica sinensis 15g, cinnamon 10g, rhubarb 10g, white peony 15g, rehmannia 15g, xuan shen 15g, dahurica 10g, bitter ginseng 15g Method: The above medicine is soaked in sesame oil 300ml for 7 days, simmered in civil fire until the dregs of the medicine slightly charred yellow, filtered dregs, then add beeswax 30-50g simmered in civil fire and stirred, set the simmering pot in a clay nest to cool down the fire, with a small box divided into equipment for use. Usage: Apply externally to the skin lesions 2 to 3 times a day, after using washing water or washing liquid. It is also effective for keratosis pilaris, chronic dry eczema, and frostbite.