This rash just popped up on the top of my right hand and a small part of my left. It really itches…

This rash just popped up on the top of my right hand and a small part of my left. It really itches and almost burns. I put some hydrocortisone on for itching. I don't know what it could be from?? I don't have any allergies, and the only thing I touched was the bathroom soap I've been using with no problem. It's weird.