The general three days for a course of treatment, the specific use of the course of treatment should be based on the degree of the patient’s condition and the patient’s physical condition, and under the guidance of a physician to use. The efficacy of Podophyllotoxin, which is composed of salicylic acid, benzoic acid, boric acid and bitter ginseng, is to clear away heat and dry dampness, and to kill worms and astringent sweating. It is used for the treatment of keratinized tinea pedis and smelly sweat caused by damp-heat underflow (dampness and heat evils invading the intestines, bladder, pubic area, lower limbs, etc.). Administration of the drug may cause adverse reactions such as contact dermatitis and occasionally severe dermatitis. Attention to blistering type, vesicular tinea pedis, children and pregnant women are prohibited. Foot light san general three days for a course of treatment, use the drug once, observe 3 days, no adverse reactions, can be used for 3 times; if the symptoms are not relieved, you should go to the hospital. However, the specific situation should be decided according to the degree of the patient’s condition and the patient’s physical condition. If there is physical discomfort, it is recommended to go to the hospital for treatment in a timely manner, and should not be used on its own, so as not to delay the condition.