We just got back from the doctor a bit ago; my poor bug has an ear infection and possibly croup. He of course never coughed in front of the doctor, so we're not 100% on the croup, but she gave him a prescription for steroids to be on the safe side. She also gave him some antibiotics so hopefully he'll be feeling better soon.
I must admit, I'm a bit concerned that this will affect his sleeping. He's finally back to sleeping all night (with the exception of the last two), and the last time he got sick it screwed his sleeping all up. Last night he woke up around 2:30 coughing so I turned on the hot shower & sat in the bathroom with the door closed for about 10 minutes or so. I got him back down around 3:15 and he slept until about 8:00. He's napping now. I hate it when he doesn't feel good; I just wish there was more I could do for him.