Cupping has acupoints. There are some acupoints on both sides of the back spine of a human elephant, such as Zangfu Shu, Xinshu and Shu Fei, all on the bladder meridian. So it is effective to pull it out at will on the back, but it is best to find acupuncture points. There is an ASHI point in Chinese medicine, which means it makes sense to pull out whatever hurts, depending on where you want to pull it out.

Pure hand tour, hope to adopt.