Fire cupping can open the meridians and activate the channels and adjust the qi and blood. It is very effective for cold and dampness, blood stasis, dampness and heat. Generally cupping can be done 1-2 times a week, wait for the previous mark to dissipate before cupping, try to avoid places with skin marks to avoid damaging the skin; also do not overdo cupping to avoid dependence. Do not take a shower within 4 hours after cupping, and do not take a bath to prevent cold and dampness from re-entering the body and affecting the healing effect. In addition, it is important to note that cupping time is not the longer the better. Because cupping varies according to the size of the jar, material, negative pressure strength, from the cupping jar to the start of the jar not more than 10 minutes is more appropriate, the main principle of cupping lies in the negative pressure, not in time. If the negative pressure is very high, the cupping time is too long until the blisters are pulled out, which will not only hurt the skin, but also may cause skin infection. It is also important to avoid repeated cupping in one location, which may lead to skin breakdown and even infection.