Back acne is officially having a moment, and no, it’s not going away with a fancy cream. Between sweaty gym sessions, bras that trap oil all day and commutes that leave you sticky by noon, breakouts on the back, chest and shoulders have become the skincare complaint everyone’s quietly dealing with. The problem is those spots are nearly impossible to treat by hand. Enter the internet’s latest obsession: 2 percent salicylic acid body sprays. One spritz, zero mess, and dermatologists genuinely can’t stop recommending them. Here’s what the format actually does, and which bottles are worth your mon...