21mo old keeps getting red bumps that look like bug bites at first then after about 3 days get a hard little blister he also has a red bottom and wheezing this has been going on all year so far. In Jan he had bad wheezing was taken to doc for a fine rash on belly and fone on bottom culture showed strep. Afew days later he had red patches all over his body, excema, started using derma-smooth, white dove and free and clear laundry det., then he had a few bumps pop up (not to concerning at the time) He was back the next week for staph was put on septra, his wheezing was still bad(after prednisolne) The next week back for recheck for his wheezing a few more bumps had appeared doc barely looked said flea bites. Next week recheck different doc I can't remember what she thought the bumps were she said they would turn into something like a wart/mole. The next week he went to the allergist this time his whole back was covered in these bumps, skin test showed no allergies. At the doc again (another doc) thought maybe allergic to new diapers, started using natural diapers, he started clearing up. After a week with no new spots more appeared and keep appearing the red bottom and wheezing is still there too. He has not been outside for two days now and there are about 10 more bumps that showed up through the night and today. I can not find any bugs in my house and nobody else is having any problems, today he was running around at the mall play spot, his face got really red and when we got home there was a little bump on his cheek, about 6 larger ones on his back and around his pants line. He is rarely in a diaper anymore(doc thought just diaper rash last time). I can not figure this out, PLEASE HELP. I have pictures of most described. Oh he also has scabs on scalp(yellow colored) and last week he woke up with a blister on his ear (clear fluid filled) waiting on culture to come back for that. THANK YOU any ideas would really help.