How are you doing? Were you able to get a doctor to check out the rash? Hope it's getting better!
There are lots of things that can cause little red bumps like that- a few that come to mind-
eczema
bug bites (ants, spiders, bed bugs- even if you don't find them right away)
scabies
I'd have a doctor check out the rash to get the most accurate diagnosis and treatment plan.