Very itchy body rash, what could it be?

A little over 2 months ago I went to the clinic at my university because I had a very itchy rash on my arm. There were a few patches. The nurse said it was eczema and prescribed triamcinolone acetonide cream. I applied this and that rash went away. Shortly after, I got smaller red bumps all over my arms, stomach, legs, hands, back. Pretty much all over my body and the itching is very severe. The cream does not relieve the itching nor does it clear up the rash. I also have clear bumps all over the palms of my hands. I have done a lot of web searching but I cannot figure out what this rash could be, any ideas?