CUPPING THERAPY & DETOXIFICATION Does cupping remove toxins? Cupping invigorates local circulation of qi and blood in the area being treated, resolving swelling, pain, and tension. By drawing impurities to the surface, it removes toxins. From a Western physiology perspective, cupping loosens connective tissue or fascia and stimulated blood flow to the surface. How long does it take to detox after cupping? Cupping therapy creates circular marks on the skin due to capillaries under the skin breaking as they release toxins. The color of a cupping mark can range from a pink to deep purple. Some marks take a few hours to a few days and even a couple of weeks to disappear, depending on the length of the therapy.