Probiotics

I try extremely hard to manage my symptoms without drugs.  They all stop working after a while, then I discovered wheat and corn trigger symptoms and went off all meds. All was great until spring.  Only one year at springtime did I NOT flare in the past 15 years.  The pollen count was very low that year,  this year, due to drought,  is extremely high. 
I started Prednisone,  did nothing.  Probiotics start to stop the diarrhea but then I start bleeding more.  Found out there is gluten and sometimes cornstarch in the probiotics. Is there anyone out there that knows of a probiotic that doesn't have these ingredients? I'm desperately looking. Appreciate anything!  Thank you!