At 17, acne is very common. To treat pimples and improve complexion, use a daily cleanser with Salicylic Acid to unclog pores or Benzoyl Peroxide to target acne-causing bacteria. An over-the-counter Adapalene gel (retinoid) applied at night can clear spots and even out skin tone over time. To prevent infections, avoid squeezing or popping pimples, and wash your hands before touching your face. Always apply a daily, non-comedogenic SPF 30+ sunscreen, as acne treatments increase sun sensitivity. I highly recommend consulting a dermatologist for a personalized skincare regimen.