Foot odor is an infectious foot skin disease caused by a pathogenic fungus and is classified into keratosis, vesicles and blisters. Podophyllum is effective in the treatment of keratosis pilaris, but the use of Podophyllum alone does not cure it. The main ingredients of Footlight San are boric acid, benzoic acid, salicylic acid and bitter ginseng, which are effective in improving the symptoms of keratosis pilaris, such as diffuse hyperkeratosis, erythema, flaking and cracking. Among them, benzoic acid and salicylic acid have the effect of exfoliating keratin, thus improving the symptoms of foot odor. Bitter ginseng has the effect of cooling the blood and detoxifying the toxin, which is good for relieving the itching of the skin caused by foot odor. However, for the vesicular and blister type of foot odor, since the epidermis is mostly traumatic, or the chance of skin lesions is high and more infectious, the use of Footlight San at this time will easily make the state of skin breakage and vesicles more serious, so Footlight San is not suitable for these two types of foot odor. After suffering from foot odor, in addition to using Footlight San, it can also be used in combination with miconazole nitrate cream, terbinafine hydrochloride cream, compound ketoconazole cream, etc., in order to remove pathogenic bacteria and treat the disease. The specific medication needs to be selected under the guidance of a doctor according to the pathogenic bacteria and your own situation. In order to avoid recurrence of foot fungus, in addition to adequate treatment and the right medication, patients should also maintain good hygiene habits, such as not sharing slippers, bath towels and other intimate items, keeping the feet clean and dry, and wearing breathable shoes and socks. In addition, it is best for family members to treat together to reduce the risk of transmission.