My 5 year old son started a week and a half ago with a slight fever and fatigue along with a runny nose. A few bumps started appearing on his face and a couple on his arms. Then a week ago he had a higher fever (we were away and I didn't have a thermometer to measure it, but he was hot) and has been getting more and more bumps. Some of them look to be filled with pus but others are just red bumps on his chin, cheeks, nose and forehead. He was originally diagnosed with mild chickenpox (he was vaccinated previously) but his doctor now sees that it is definitely not chickenpox, but is not sure what it is. It seems to be getting a little worse every day and it has now been about 1.5 weeks since the first bump appeared. Any ideas? I'm not sure if it is infectious, but his sister had a couple of small bumps that went away after a couple of days.
I had him out of school when we thought it was chickenpox but now am not sure whether to put him back in school. He is quite embarassed about the red bumps.