KC has the same "sandpaper" bumps on her upper arms and lower face, she began getting this at about 9yo. it doesn't itch and looks like acne that never comes to a head. We have tried everything to clear it up, though KC isn't one to stick with anything for long. I have to stay on her about taking her meds. she knows the importance but has to be told over and over to take it. Keep us posted if there is anyone who finds a "cure". Melissa