cupping is using glass bowls (like tiny goldfish bowls) that have a lit ball of cotton wool inserted into it for a few seconds then quickly removed then the heated cup is applied to the body, the heat creates a suction which allows the cup to stay on the body. The suction helps to draw out toxins ie detoxifies, and releases pent up tension. Therefore helpful for aches & pains, shoulder pain and period pain.
I did a 1 day course at Sandra Day School, Rochdale. Also google Dr John Brazier as he was the tutor.