Poor Alex had a rough start to December.
On Thanksgiving night, we had to take Alex to the ER because he slipped on a 2-step stool and split open his chin. The ER folks were awesome - we were on our way home one hour after we arrived. The docs ended up gluing the gash shut, and it's healing very nicely.
A few days later, he started refusing to take naps and waking up in the middle of the night, screaming bloody murder. We couldn't figure out what was wrong with him, since he's a great sleeper. Finally, I had to take him to the doctor - I was worried there was something we missed from his fall on Turkey Day. Turns out, he had his first double ear infection. The doctor perscribed him Amoxicillian, and we gave it to him that night.
The next morning, he slept a little later than usual, which I thought was probably because he hadn't slept well in days. When I went in to get him, he raised his head from the bed...and looked like this:

So, I pretty much freaked out, called the pediatrician and got the first appointment I could. Obviously, this is an allergic reaction to the antibiotic, right? The only thing we've done differently with him in 24 hours, he's never had an antibiotic before, I'm allergic to amoxicillian...cut and dried, right?
Now, keep in mind, I have both kids with me, we've had a rough week with Alex, Seth is so crazy-busy at work he can't get away no matter how much he wants to, and it's freezing outside. We get to the doctor's office, and back into the exam room...and the kids go nuts. Running around, yelling, crying, being totally out of control. Then the doc walks in.
This isn't our normal doctor - it's one of the ones we usually choose not to see because she doesn't have a great bedside manner with the parents or the kids, and she always acts like she's got no idea what's going on. Not comforting in the least, and not really someone I'd prefer to take my sick kids to when I'm really worried.
Anyway, she announces that it is not an allergic reaction to the meds, it's probably a reaction from a virus being affected by the meds. Huh?! Now he has a virus and a double ear infection? What kind of virus could do that? Well, she mentions mono. Mono?!! Is she going to test for that, I wonder. Nope, he doesn't have any of the other symptoms; she just mentioned that for example's sake. Okaaaaay....
Needless to say, she did give me prescription for a different antibiotic, we gave it to Alex, and his face was better within a couple of days. And, we're changing pediatrician offices - we love his normal doc, but only see him when the kids are in the office for their well checks.