Omnicef and suggestion

My granddaughter, who's 8 months old, had been on Omnicef for eight days when the daycare called my daughter yesterday and told her that there was blood in her diaper. My daughter picked her up right away and took her to the doctor. After testing the diaper contents and noting that it was not blood, the doctor told her it was just a rare side effect to the Omnicef. Other than that scary incident, my granddaughter hasn't had any other problems with the medication and it seems to have cleared up her ear infection quite well. My suggestion would be for pediatricians to inform parents that this side effect, though rare, is a possibility. It was really a very anxious couple of hours for my daughter.