Sweat from a crazy, calorie- slaying gym sesh or a simple summer outing can clog sweat ducts, leading to breakouts, says dermatologist Jessica Wu, MD. Red rashlike bumps, however, are likely folliculitis, which may be caused by seemingly innocent yoga pants, tight tanks, or even snug undies.
Both issues can be treated similarly: Shower with salicylic acid–laced body wash ( it breaks down oil and curbs inflammation). Follow with antibacterial benzoyl-peroxide lotion one or two times daily until skin is clear. Until then, rely on a trusty concealer—or Visine, which constricts blood vessels in skin like it does eyes, says dermatologist Mona Gohara, MD.