Rash and Antibiotics?

tracelini

So Wy is being treated for strep right now and has since broken out in a rash (since last night) that is just little red bumps like a diaper rash (with no red on the skin though, just bumps). He's got an appointment with the doctor this afternoon, but curious if anyone else has had a similar reaction to antibiotics? My mom swears that's all it is probably, but always best to get it looked at. Anyone else have any ideas? Doesn't seem to bother him...not itchy, i can poke them and it doesn't seem to phase him so it's obviuosly not painful....just a reaction??