I just got off the phone with my dermatologist. Apparently the blood test shows I don't make enough TPMT a liver enzyme because I am homozygous (got the same gene from both parents) and don't make enough genetically. So my liver can't metabolize the Imuran completely so that explains why it isn't working for me. So I'll be on the lowest dosse of Imuran until we can figure out what to treat me with. My derm is sending me up to Portland to OHSU for a consultation since she's never treated BP with anything except Imuran. I feel relieved knowing why the meds weren't working and even though I'm still uncomfortable this gives me hope another therapy could work.
I am packed and just wrapping up loose ends today for my trip. I fly to Dallas bright and early tomorrow morning :)