I went to an allergist last year, and I will love him forever. Filling out the medical history was almost as complicated as writing my master's thesis, but the guy was great, except that when he was looking up my nose with the scope, and he stated, "typical allergic nose" which was kind of embarassing.

In the end though, he gave me suggestions about manipulating some OTC stuff (cheap!) and gave me samples of 2 different nose sprays, one antihistamine (which didn't do anything for me) and one steroid (which I'm sure is performance enhancing on my bike-and also, when I use it I can breathe and not be sick).

Because of my detailed description of how my throat feels in allergic moments, the allergist also referred me to an ENT who scoped me (up the nose and down the throat) and gagged me (medically, with his scope, not in a kinky way) and pronounced me normal. This I believe is probably just recompense for having referred hoarse voice patients to ENT to rule out pathology. (He was very professional and handed me a tissue and mostly ignored it when I sort of puked on his chair.)

I'd highly recommend seeing a specialist and following his or her recommendations.