As POPSUGAR editors, we independently select and write about stuff we love and think you’ll like too. POPSUGAR has affiliate and advertising partnerships so we get revenue from sharing this content and from your purchase. “You have such perfect skin — you look like a porcelain doll!” This is a compliment that I’m used to brushing off. (I do have pretty good skin, but I swear it’s all about the foundation brush!) Don’t hate me just yet, though: only the skin on my face looks flawless. My upper arms, thighs, and butt are covered in tiny little red bumps that I thought were breakouts for years. Turns out, they’re actually caused by a common skin condition called keratosis pilaris (KP). According to Dr. Jennifer Linder, dermatologist and PCA Skin chief scientific officer, this is a common misconception, and a damaging one at that. “Avoid picking at keratosis pilaris — it causes inflammation and irritation.” Instead of sebum buildup like a blemish, KP is caused when the “keratin in the skin forms hard plugs inside of hair follicles,” Dr. Linder explained. If you have it, you know how annoying that plucked-chicken text...