Even though cupping causes some rather painful bruising, the technique is widely accepted as safe to use, even if opinions on its efficacy are divided.
Most specialists concur that cupping is secure. According to Harvard Health, adverse effects are often restricted to the pinch felt during skin suction, if the patient is OK with the circular discolorations that disappear over many days or weeks.
“It’s quite unusual that cupping causes any serious problems (though, rarely, skin infections have been reported).” That’s all for now, people.