Fig. 2From: Effects of moving cupping therapy for plaque psoriasis: study protocol for a randomized multicenter clinical trialDifferent cups used for the intervention group and the control group when implementing moving cupping therapy. a The cups used for the intervention group can produce a negative pressure adsorption force when the air in the cup is burned. b The cup used for the placebo group has a special perforation design, and no negative pressure adsorption was formed after combustionBack to article page