You ever try Rifaximin ? Its an ceratin antibiotic you take and do a special diet for a month or so . I had SIBO and that took care of all the digestive issues I had . I know during my online research i saw that Chrohns and SIBO are similar . EDIT Found diseases . html this website has all the info and how to treat SIBO and related stuff . Dr Shafran reported in 2005 that 78 % of Crohn ' s Disease patients had a 70 point improvement and a 59 % remission rate after treatment with Rifaximin , the antibiotic used to treat SIBO . A more recent 2010 study from Dr Shafran reported a 70 % remission rate from Rifaximin therapy . <| sep |> You don ' t even need to take it out . Open the case , put a ruler up against the card .