one pack at a time. Just put it in when you soak your feet before going to bed every day. You can put it in hot water first and wait for the medicine to volatilize and the temperature is suitable for use. Soak time 15 minutes to 30 minutes TIPS FOR SOAKING: 1/2/4/8bags x kuwater Kidney Support Herbal Foot Soak (10pcs/bag)
