Keratosis Pilaris is an inherited skin condition characterized by tiny, flesh-colored to slightly red bumps that appear on the outer areas of the upper arms and give the skin a sandpaper-like texture. Other symptoms can also include itching, especially during the winter months and in low-humidity climates. Each tiny bump is a plug of dead skin cells that forms at the site of a hair follicle.
Moisturizers may help with the dryness and associated itch. Mild peeling agents are most effective in opening the plugged hair follicles and work by removing the excess skin. Topical retinoids also are commonly used.