Measuring what cupping therapy pulls from the skin

Cupping therapy is a traditional Chinese medicine (TCM) technique used to treat chronic pain, expedite muscle recovery and other conditions. It increases blood flow by creating suction on the skin. But what is released from the skin during treatment? Researchers reporting in ACS' Analytical Chemistry developed a noninvasive approach to analyze compounds pulled into the cup. In a pilot study with healthy volunteers, they detected changes in 13 volatile compounds before and after treatment.