Can something that looks like it ends in such a painful result really be helpful?
Cupping therapy is an ancient practice from Egypt, China, and the Middle East.
The healing method is a form of alternative medicine in which special suction cups are placed on the skin.

It can also be classified as a kind of deep-tissue massage (viaWebMD).
The redness and bruising typically lasts for about 10 days.
From a modern Western medical perspective, cupping offers benefits by loosening connective tissues and increasing blood flow.

It also relaxes tissues and improves cell-to-cell communication (viaMedicine Net).
In general, it seems that there is some evidence to suggest that cupping therapy can be beneficial.