Eczema Diet and Detox support

I am going through topical steroid withdrawal, which seems to be helped by taking 5-10mg of prednisone daily. That cleared it up pretty quickly but not completely. After 3 weeks on prednisone, I am trying to wean myself off prednisone while moving to a FID diet, but when I moved down to 2.5 MG a day, I flared right back up again. I am wondering if I should just continue with 5-10 MG a day as I do the FID program, or go off prednisone altogether. Or should I talk to my doctor about trying Dupixent as a way to help me through the tsw symptoms? Either way I will do the FID diet plan as I am sure I have food allergies. I am a teacher in the US and find it really hard to go through these symptoms while working. If I can manage these symptoms for the next 5 months until summer break and then wean myself off medication, that would be okay for me. Thanks for any advice!