I personally have never tried pain medication.  But I do use Copaiba Essential oil topically, and wow does that take away the horrible abdominal pain that I would get during a flare.  
Also, once after a long hospital stay, a doctor prescribed me a low dose of Valium.  It really helped with pain management for me, although that drug is not used for that--it offered me great relief. 
-Elizabeth (team member)