The bumps that form at the mouth of the local hair follicles due to the inability to grow sweat hair are mainly referred to as follicular keratosis, also called perifollicular keratosis, which is a skin damage caused by genetic factors. The condition is usually painless and does not itch, and there are obvious keratosis-like changes on the surface when touched by hand. To improve the symptoms you can apply Adapalene gel or benzoyl peroxide, which can effectively exfoliate the keratinized hair follicle opening, thus allowing the sweat hair inside to grow normally. You can also choose to use moisturizers such as vitamin E cream, propanetriol, and hyaluronic acid gel to increase the hydration of the skin and thus achieve treatment. Acidic creams, such as compounded lactic acid cream or salicylic acid cream, can also be applied directly to improve symptoms through the corrosive effects of acidity. However, no matter which treatment is used, there is no way to treat it completely and it will recur once the medication is stopped.