Keratosis pilaris is a benign, genetic condition causing dry, itchy, thick bumps on the skin. It may resemble goosebumps or be mistaken for acne. The bumps are caused by plugs of dead skin around hair follicles. Keratosis pilaris generally appears during childhood, and for some people it may fade or resolve during adulthood. People with eczema, allergies, asthma, and family history of keratosis pilaris are at a higher risk for developing this skin condition. Keratosis pilaris can be seen anywhere on the body (apart from palms and soles), but is most commonly seen on the upper arms, thighs, cheeks, and buttocks.
Treatment of keratosis pilaris is required if the bumps or dryness are symptomatic or cosmetically bothersome — but otherwise it is a harmless condition, and treatment is not necessary. Those who choose treatment should be aware that it will be an ongoing process, as there is no cure for keratosis pilaris. However, it may resolve on its own with time.
This condition may be improved by frequent moisturizing with fragrance- and dye-free moisturizers and using soaps made especially for sensitive skin. There are also several over-the-counter products with lactic acid, salicylic acid, and urea which can help exfoliate the skin the flatten the bumps. Gentle exfoliating with a washcloth or loofah may also benefit the affected skin. Prescription topical therapies are used in severe cases. Reference