While considered most common in teenagers who are experiencing hormonal changes, people of all ages can get acne. Hormonal changes during puberty, pregnancy, and the menstrual cycle, environmental irritants, and skin care products are all common causes of acne flare-ups. Some patients may also treat acne using radiofrequency therapy, which may reduce the appearance of acne for many patients. Chemical peels and microdermabrasion may also be effective in treating acne and rejuvenating the skin. Most acne medications are more likely to cause side effects like the darkening of skin and the appearance of red marks after the acne clears. Thus, these acne medications only remove acne but are not meant for acne scar skincare.