M.P.
Hi,
My son had RSV also when he was an infant. We were in the hospital for about 4 days. We went home with a nebulizer. He is now 2 1/2 and it seems that every cold he gets goes straight to his chest. My friends son had pnemonia as an infant and they have the same issues.
If you feel like seeing a specialist will help - then I say you should do it. I know that whenever I get a feeling about something - I am usually right. Better to be safe than sorry - right?
Good luck and hope you little man is feeling better soon.