What medicine is good for practicing iron sand palm?

"Yi Jin Wash Your Hands": Put 250g of Lycium barbarum peel, 250g of salt and 3-4kg of water into a casserole and fry for 20-30min. Before each palm exercise, put the soup on the stove and heat it to a hot degree; Before and after practice, put your palm in hot soup and scrub it thoroughly. This medicinal soup can last for 100 days, and appropriate amount of salt and water can be added in the middle to avoid drying up. Therefore, the decoction has the special effect of relieving swelling and pain, and has the function of thoroughly remoulding oneself, hence the name "Yijin Decoction". Put 500 grams of rust nails (or 250 grams of pure rust) and 500 grams of edible "vinegar essence" (note: it is not ordinary low-grade grain white vinegar) * * into a larger bottle and leave it sealed for 15 days before use. At this time, it has become a special potion with deep red color, which can quickly reduce swelling and relieve pain. After each palm movement, pour out dozens of drops and rub your fingers for 3-5 times. When in use, heating is not needed, and it is convenient to carry and use. The above two processing methods are all from Mr. Gu, a master of iron sand palm and modern martial arts. They are so effective that learners can only prepare one. It is particularly important to note that the practice of iron sand palm must rely on drugs as protection to assist the practice. According to the predecessors, if you don't cooperate with drug exercises such as detoxification, detumescence and pain relief, toxic gas will go deep into the body and lead to the root of the disease, which is not good for your health. Fortunately, both of the above medicines are available and the prices are not expensive. Please get ready.