We have a year old mini dachshund that has been on consistent diet of Nutro Max dry food, never is fed any table scraps. About three weeks ago she started vomiting undigest food, numerous test were done, blood, xrays, surgery and inflammatory bowel disease was the diagnosis. She has been on amoxicillin and flagyl, which seemed to be helping but started up with vomiting again. She does have a nasty habit of eating feces, could this be a cause of the IBS? Is there a good supplement to help with digestion? She is also on a prescribed diet, but I noticed that the 3rd ingredient is corn which I did not think was good for dogs.