Omnicef Red Bumps, Oatmeal Bath, Colored Stools, Night Terrors, Chicken Pox

My nine month old daughter was on Omnicef for one day and had red colored stools which we thought may be from the tylenol. She also broke out in a rash the second day (red bumps that looked like chicken pox) in a small area, so we watched it. The next day she had the bumps all over her trunk and head...they kept getting worse and multiplied until she was taken off of the medicine! They do worsen in the sunlight! We kept her in only a diaper for about four days and gave her an oatmeal bath and benadryl, and that helped. She also had night terrors where she would wake screaming and shaking which is very unlike her! She was taken off of the Omnicef by the Dr. and put on Zithromax which has been great!