You could try Rifaximin. Mesalazine is milder and has also been successfully used for post-infectious IBS, so I would be inclined to try that first. I must be honest, I don't know a lot about
rifaximin. I would try one; if that doesn't work, then try the other. The mesalazine does take a couple of weeks to start working, whereas rifaximin probably is much quicker.
Dx Crohn's in June 2000. (Yay )
Tried: 5-ASAs, azathioprine, 6MP, Remicade, methotrexate, Humira, diets.
1st surgery 20/2/13 - subtotal colectomy with end ileostomy.
2nd surgery 10/7/15 - ileorectal anastomosis. Stoma reversed and ileum connected to the rectum.
Current status: Chronic flare. Do I have any other kind?
Current meds: 50mg 6MP; Entyvio (started 3/11/16)