Hi Dear, Understanding your concern. As per your query you have symptoms of cystic acne on face which is severest form of acne and it occurs when pore in your skin gets clogged, usually with dead skin cells. It could be due to hormonal change during puberty , androgen hormones stimulate more sebum to be produced and a greater amount of skin cells to proliferate. Exfoliate gently once or twice a day with a salicylic acid-based exfoliant. Apply benzoyl peroxide cream or gel for killing the bacteria in the pore . Wash your face using a mild soap or cleanser and lukewarm water. I would suggest you to visit dermatologist once and get it examined. Doctor may prescribe oral antibiotics like clindamycin , Isotretinoin or Hormone Therapy. Hope your concern has been resolved. Get Well Soon. Best Wishes, Dr. Harry Maheshwari