Cupping, and the marks it leaves
Gua sha is a traditional Chinese technique in which the practitioner repeatedly press-strokes lubricated skin with a smooth-edged tool, usually over the back, neck and shoulders. Most people come to it for muscle tension and stiffness.
Redness and small pinpoint marks (called sha) are expected and usually fade within a few days. Tell the practitioner about any blood-thinning medicines, fragile skin, varicose veins or moles in the area, as these are avoided. Facial gua sha is a much gentler, cosmetic technique.
Research on gua sha is limited: the trials so far are small, so it is offered as part of a broader treatment plan and is a complement to medical care, not a replacement for it.
