How did the ancients disinfect the needles used in acupuncture?

If conditions permit, it can be disinfected in a steam pot, that is, the needles used are wrapped in gauze and placed in an autoclave with a pressure of 15 pounds and a temperature of 120 degrees Celsius for 15 minutes to achieve the purpose of disinfection. If it is boiling disinfection, the needle can be wrapped in gauze, boiled in clean water, and then boiled for 15-20 minutes, which can also achieve the purpose of disinfection. In addition, it can also be disinfected with drugs. Soak the needle in 75% alcohol for 30 minutes, take it out and dry it before use. As for the forceps of the needle placement device, it can be used by soaking in 2% Lysol or 1: 1000 mercuric chloride solution 1-2 hours. Needles used by some patients with infectious diseases must be placed separately and strictly disinfected before use. For the average patient, it is necessary to do one point and one needle.