We’ve recently begun cupping. My husband says it helps his shoulder. I’ve not noticed a difference yet, but will keep trying because it doesn’t hurt. The marks go away in a couple days and is not painful. From what I understand, you should open up your lymph nodes before cupping so the toxins that are drawn to the surface can drain away easier in the lymphatic system. It increases blood flow to the area you are working on, so it stands to reason it would promote healing. I don’t consider it “woo woo “ but rather a last resort for any small amount of pain relief.