The exact time to touch water after cupping depends on whether the skin surface is broken, blistered, or flowing after cupping, etc. Usually patients can touch water after 3-6 hours if there is no abnormal performance after cupping. Cupping is a kind of jar therapy, which has the effect of unblocking meridians, activating blood circulation, removing blood stasis, dispersing cold and dampness. As the skin pores are open after cupping, it is easy to catch cold and flu after touching water or bathing. If the cupping time is too long, resulting in blisters and flowing water, the local skin should not be touched with water in the short term, and should only be touched with water when the skin surface is healed, otherwise it will easily cause skin infection. Patients are advised to use disinfectant water for disinfection treatment every day, and antibiotic ointment can be applied if necessary. In addition to not touching water for a short period of time after cupping, patients should also be careful not to blow on air conditioners or fans, and keep bed sheets and clothes hygienic and dry to prevent skin allergies.