Rashes on hands

I’ve had these little bumps on my arms for as long as I can remember. They’re most noticeable on my upper arms, with just a few scattered along my forearms. From what I can tell, a lot of people deal with this, though maybe mine are a bit more prominent than average...
They’re just small, dry patches. I’m thinking about trying a heavy body lotion to see if adding some moisture and vitamins helps the skin. Has anyone here actually tried this? Any success stories?

I deal with those on my upper arms quite a bit myself, but I've had good luck clearing them up using La Roche-Posay or Eucerin 10% urea lotion.