For the past week my mum on my right hand are getting these little tiny bumps that are red and raised I've been taking Benadryl and its not really helping. What's wrong with me

This is about like, telling a car mechanic, my car will not start, what is wrong with it.

There are dozens of things that could be wrong.

It may be a nervous reaction, or a allergic reaction. You have or are touching something new, changed soaps, dozens of possible things.

If it is not going away, you need to think of any changes, emotional, mental, stress, and changes in environment

Then of course you can be checked by a doctor also