Oh no that's awful! I'd be furious. It sounds like you did advocate for your DC and they convinced you otherwise. I saw a news article recently that was specifically about penicillin allergies and it stated that most people who think they are allergic to it really just have a sensitivity and that docs should require testing before labeling someone as penicillin allergic. I get that. But when you have a sick kid in front of you it doesn't seem the appropriate time to talk someone out of the allergy and give a related med. The doc could've counseled you on that, suggested further testing, but then prescribed something s/he knew wouldn't cause a reaction.
I hope you DS recovers from the strep and the hives quickly!
Mom to two amazing DDs ('07 & '09) and a fur baby.
Gluten free since Nov '11 after non-celiac gluten sensitive diagnosis. Have had great improvement or total elimination of: migraines, bloating/distention, heartburn, cystic acne, canker sores, bleeding gums, eczema on elbows, dry skin and scalp, muscle cramps, PMS, hair loss, heart palpitations, fatigue. I'm amazed.