Omnicef and physicians

My cousins 5 year old daughter had a horrible experience with onmifef. She also had a terrible ear infection for which the antibiotic was prescribed. She woke up on the 10th day swollen from head to toe, terrible rash all over her body, fever, etc. Took her to pediatrician and he immediately sent her to children's hospital. There they were told by 3 different physicians, serum allergy. I cannot believe a physician would prescribe this after I had seen all the comments on this site. This is just horrible and to hear what all these young children have had to suffer just irritates me to no end. Something must be done about this medication!