The precautions after cupping are to pay attention to keep warm, avoid water within 12 hours, and if the blisters are too big, they need to be sterilized and broken. Cupping is the use of various ways to use the can to generate negative pressure, adsorption on the skin surface, so that the local skin congestion, the human body produces benign stimulation, in order to achieve the purpose of treating related diseases. Can be used to treat a variety of diseases, cupping cupping before the need to eat properly, hunger, drunkenness, etc. are not recommended cupping. After cupping, because the skin coupling (pores) is open, so after cupping, you need to pay attention to keep warm, avoid getting wet, to avoid the evil to take advantage of the weakness to cause colds, coughs and other discomforts. In addition, if the cupping time is long and causes localized blisters, as long as they are not broken, they can be absorbed naturally. If the blisters are too big, you can use the tip of a needle to pick them, squeeze out the water, and then cover them with a sterilized dressing. The blisters should not be exposed to water and should be sterilized to avoid infection. Patients are advised to go to the hospital if they feel unwell. If cupping is needed, it should be carried out under the guidance of professional physicians.