question: Hi my son has had what looks like insect bites come up on his skin. I first assumed this because of mosquitos coming out in my area. Then one small bump on his arm began to swell and become hard. It started using water today and then a large bump appeared on his cheek. His skin is very red and his cheek is very swollen. Not sure what this could be or what to do for it. I had been putting alcohol on the other bumps and then last night I started using cortisone cream. It doesn t seem to be working.