There are 6 main meridians on people’s feet. Including stomach, bladder, gallbladder, spleen, liver and kidney. The starting point of the six meridians are on the feet. So there are 6 meridians, more than 60 acupoints and more than 70 reaction zones on the feet.
990 vitamin vinegar(the full name of hot vinegar) is real medical vinegar, which includes radix sophorae flavescentis(a kind of medicinal materials) 、pepper and so on. According to "traditional Chinese medicine, channels and collaterals, plantar responses",