Picking acne or popping pimples
Indeed, popping a pimple is very satisfying, but it causes more damage. Popping a pimple releases the puss to nearby tissue and the bacteria in the puss also damages nearby healthy cells. Touching the pimple transfers more germs and bacteria in it, causing more inflammation and damage. When you touch or pop a pimple it is very likely that it will leave a mark behind, which will not fade away easily.