Rhonda:
You may indeed be allergic to one of the chemicals you're exposed to at work. But if so, you aren't going to get better and stay better if you keep exposing your hands to it. Medrol is too strong to stay on, and Ultravate won't help enough by itself.
I think you ought to have patch tests for allergy. If they show a problem with one or more chemicals, your doctor will need to speak with your employer, to see if your work can be adjusted to avoid exposure to what you're allergic to.
Please discuss these suggestions with your dermatologist.
Good luck.
Dr. R