My skin isn't clear on my upper arms & thighs. they're a bit rough/prickly. tried lotions & others. had my whole life. not itchy/painful. any idea?

Keratosis pillaris : Keratosis pillaris, usually a benign and asymptomatic skin condition, commonly presents as you have pointed out, often involving the upper arms, but can be seen elsewhere on the body as well. If this is the condition you have, daily use of exfoliating moisturizers containing Lactic Acid or urea may help. Topical tretinoin may also be very effective.