PAIN RELIEF: Keep using the foot acupuncture massage tool will help to relieve lower back pain; migraine; foot pain due to plantar fasciitis, arthritis, neuropathy. HEALTHCARE: Built with 39pcs massage buttons for foot acupoint stimulation, which helps to improve physical mobility, blood circulation, thereby enhancing overall health. IT HURTS: These are therapeutic massage slippers that you only wear for 10-20 mins per time. You may feel pain at first few times, and it takes 1-2 weeks to get used to it.