Do you think it's a reaction to a particular lotion? You might want to switch to something like clear aloe vera.
There is a benign thing called pearly papules. There are other benign bumps as well. The last thing you want to do is cause scarring or infection. I'd suggest gentle soap (read the ingredients and pay attention) and never, NEVER any cortisone cream.
I've been helping people on this site for years, and many, many men were prescribed cortisone cream for some rash on their penis and it thinned out their skin and cause permanent scarring.