Pesky ingrown hairs can crop up in various places including legs and groin.They can occur even with safe hair removal methods such as shaving and waxing – and the NHS says shaving is the main cause of ingrown hairs.Dr Nainan says: “Sometimes, you might see hairs that have grown back into the skin, causing a small bump.The bumps may be red, sore, and even yellow if infected.Dr Nainan says: “While it might be tempting to pluck them, this can cause irritation, redness, or infection.“Instead, gently exfoliating the skin can help.”Exfoliating helps to remove dead skin cells and allows hair to grow the way it’s supposed to, without growing back into the skin.