What are the side effects you are experiencing? A little more detail might help us here provide some advice.
It’s not a one or the other matter either. If you use steroids for three days out of the week and Protopic on the others, it might give your skin enough of a break that your side effects subside and control the eczema.
My doctor is also big on UV light therapy. I have tried it, and I find too time-consuming and high-maintenance (you need to go to the Dr’s office several times a week for 15 minutes for light treatment). Might be worth considering.