Greetings. Going to a gym will not cause you acne, rather it may help. The problem can be with protein supplements and diet modification which many people adapt to when exercise becomes a part of their daily routine. Certain food may cause or aggravate acne. Feel confident and make exercise suit you for a healthy life ahead. Acne treatment has multiple stages - to control new breakouts, to clear the sequelae (pigmentation and scars) and to prevent a relapse. An attempt to find out the root cause of acne should be made in every patient or else it keeps recurring