I have gotten very confused about which doc to go to as well.  My son now has a pediatrician, pulmonologist, ENT, allergist, and an allergy specialist in NYC.  I often feel like it is overkill, but they do not.  I use my pediatrician as the coordinator.  If his ailment is not completely specific to one specialist, I go to the pediatrician.  ie.  he has severe sinus problems that aggrivate his asthma.  So, when he starts coughing and snorting, do I go to the pulmo or the ENT.  I just go to the pediatrician and she tells who to see, if anyone.  She is very good at giving advice if I just call her too.  Hope it helps!

--Sally