Salt water has a mild bactericidal effect, salt water foot soak is conducive to the shedding of the foot cuticle, for the pathogenic bacteria have a certain inhibitory effect. However, foot odor is a skin disease caused by pathogenic fungi and is highly contagious and recurrent, so the salt water foot soak alone cannot cure foot odor. Foot odor can be divided into three types according to different symptoms, namely blister type, vesicular type and scaly keratinized type. The main symptom is the appearance of many small blisters between the toes and on the soles of the feet, often accompanied by severe itching. 1, blister type of foot odor: the main symptom is the appearance of many small blisters between the toes and on the soles of the feet, often accompanied by severe itching. Since the acidic environment can inhibit the growth and reproduction of fungi, mild dilute acetic acid solution or sodium bicarbonate solution can be used to soak the feet; 2, vesicular type of foot odor: the main symptom is that the local skin will be white in color due to long-term soaking by sweat, and there will be bright red vesicular surface after the keratin is shed, and there is intense itching. It is necessary to first reduce sweating and keep the feet clean and dry. You can also use a wet compress of potassium permanganate solution with a concentration of 1:8000, and then use antifungal ointment after the skin is dry. Can not be used topically irritating drugs, so as not to stimulate the local erosion surface, aggravating the symptoms of lesions; 3, scaly keratinized type of foot odor: the main symptom is the edge of the foot, plantar and heel parts of the skin is significantly thickened, hardened, can appear repeatedly flaking, more strong odor. The therapeutic effect of antibacterial medications can be improved by using stronger acting foot soak medications such as foot gloss to reduce necrotic keratin and exfoliate some of it before applying ointment. Treatment of foot odor usually requires that the medication should be adhered to according to the course of treatment under the guidance of a doctor and should not be used indiscriminately. Common antifungal topical creams include miconazole nitrate cream, terbinafine hydrochloride cream, etc. Avoid eating spicy and stimulating food during medication, wear breathable shoes and socks, wash feet regularly to maintain foot hygiene and avoid cross-infection.