Thanks guys I did call our Ped and he had me email the photos to him and he is positive (he did actually see it yesterday when it was just on C's belly) that it is not hive and is not an allergic reaction to the amoxil. It's still either just the virus coming through or a delayed reaction to the antibiotics. No need for us to be see since C's last dose was this morning but he did give me a dosage amount for benadryl "just in case" and told me that if it looks like it starts bothering him to rub him down with a bit of hydrocortisone cream!!