Seven years ago i had severe uncontrollable loose motion i had taken to hospital and got few test's which are, biopsy, colonoscopy, report was terminal ileitis proctits CROHN'S Disease,,, i was hospitalized for 15 days and was normal after medication,,, at present im not taking any medicine for crohn's disease,, few days back i was diagnose with Seborrheic dermatitis and doctor prescript me Sotret 20 mg (iSotretinoin) after using this medicine i notice uncomfortable in my stomach. I’m afraid sotret iSotretinoin will again hospitalize me with severe uncontrollable loose motion?? And need to know whether this medicine cause colon ulcer??