When the pain and swelling of deep bumps is more than you can bear—both physically and psychologically (since deep acne can have strong negative psychosocial effects)—but a cortisone steroid shot at a dermatologist’s office is not in the cards, reach for our powerful leave-on treatment that’s stacked with actives and skin-healing ingredients like max-strength 2% salicylic acid for quick and long-term relief.