What Causes Relapse Of Intestinal Ulcer?

MY DAUGHTER HAS BEEN SUFFERING FROM ULCER IN INTESTINE ,WHICH WAS INITIALLY REPORTED AS CHRONIC APENDICYTIS.IMMEDIATELY SHE WAS OPERATED UPON IN JANUARY LAST AND AFTER BIOPSY,ATT CAT-2 HAS BEEN STARTED AS SHE HAD SUFFERED FROM INTESTINAL TB EARLIER.LATER AFTER A SERIES OF INVESTIGATION LIKE PCR,BACTEC IT WAS TOLD BY THE PHYSICIANS OF INDIA'S AIIMS HOSPITAL THAT IT IS CD.BUT THEY ADVISED TO COMPLETE THE CAT-2 ATT COURSE OF 1 YEAR.THE PATIENT,AN 18 YEAR OLD GIRL,OFTEN EXPERIENCES 99 (+_)F TEMP IN THE AFTERNOON AT LEAST 10 DAYS/MONTH.HER ESR AND CRP ARE NOW WITHIN NORMAL LIMIT.SHE HAS ALSO GAINED 5KG OF WEIGHT DURING THE LAST 8 MONTHSBUT COLONOSCOPY AND SUBSEQUENT BIOPSY REPORTS STILL SUGGEST THE EXISTENCE OF ULCER.What should we do now?