Hello,
Acne is caused by the overstimulation of the skin’s oil glands which block the opening of the pores. This in turn, stimulates bacteria to grow resulting in swelling
Acid. I suggest you to consult a dermatologist. There are several options for the treatment of acne, like topical or oral antibiotics, retinoids, or Isotretinoin. For the acne scars, it may be treated by chemical peels, dermabrasion, or laser resurfacing.