Anyone know how to get rid of these bumps?

I've had these bumps all over my arms since I was little. I've been to dermatologists who have told me it's because of dry skin building up around where the hairs are growing. However, I've covered my arms in lotion night after night and they don't seem to be going away. My favorite moisturizer in the entire world is "Utterly Smooth" because it makes my skin feel wonderful. But even it won't get rid of the bumps on my arms. Does anyone have these bumps and know the reasoning behind them? Or a way to fix it? 
(The photos don't really show how bad it is)