Hi! I'm not sure but from what it sounds like its a type of dermatitis (maybe from an allergy) that occurs on the the hands and feet. I forget the specific name, but it sounds weird, starts with P and has a few x's in there
The bumps are very small and look sorta like tapioca seeds right? I get them once in a while but at one stage i had heaps and my hands and feet itched like crazy. Is this the same for you?
You could go to a GP or dermatologist to get a cream for it?