Hi...I would go back to your doctor as well as your allergist.
You should try the rectal meds...yeah, broken record, but could be a good thing for you. I'd suggest the 5ASA retention enemas initially nightly and taper to a maintenance.
I would also suggest you ask the allergy doc (or your GP) to put you on Singulair.
I have a friend who cannot use Imuran and her symptoms with back/leg/feet pain was a biggie.
Have you had allergy testing done?
*Heather* Status: ...Asacol 3 twice daily; Salofalk enemas every 2nd night
~diagnosed January 1989 UC (proctosigmoiditis)
~UC meds: Asacol (3 @ 2x daily); Salofalk enemas nightly for flares & taper to maintenance
~Bentylol (dicyclomine) 20mg as needed; Ranitidine (reflux); Effexor XR 75mg(depression); Pulmicort/Airomir (asthma)
~vitamins/minerals/supplements; Probiotics....(RenewLife Ultimate Flora Critical Care + Primadophilus Reuteri). @ bedtime
~various digestive enzymes as needed
~URSO for PSC (or PBC) 500mg X 2 daily (LFTs back to NORMAL!!)
My doc's logic.. "TREAT (FROM)BOTH ENDS" worth it !!!