Where Does One Buy a Bubble?

We're really starting to think it might be easier to keep Ethan in a bubble!  He's sick again.  :(  He was in therapy all last week (longest time he's been away from us) and we got a call on Saturday morning to bring him in to be seen by a doctor because he was vomiting and had a fever.  Ethan doesn't typically get high fevers so when they told me it was 38.9 C I figured we best get him in quick.  We dragged him off to the ER and were very lucky because the waiting room was pretty empty.  It was one of our shorter visits to the ER as they said he might have a left ear infection, a chest infection or an abscess from the cast and sent us home with broad spectrum antibiotics.  He was fine except for a temperature here and there until this morning when he got sick again.  I brought him in again and his ears still look like they might be infected and we're just continuing with the antibiotics.  If he does not get better within another 48 hours we're to bring him in again.  And tonight he's spiked another fever and was sick shortly after his antibiotic.  We just hope he was able to keep some of the medication down.  Now we're waiting to give him his next dose of Tylenol...