What is the best allergy med for nasal discharge/buildup?

[detroitlionsstink]

This is gross so sorry about that! My nose drains into my throat constantly for the last year+. Im always spitting up this sticky snot all day and when I wake up in the morning I usually have a huge chunk of nasty stuff to spit up. Its pretty bad. I think my main allergy is dust. What is the best perscription medication to ask my doctor about? She has me on Zyzal but that does nothing.

[Jess]

I would try Zyrtec. Works wonders for me.

[Misty]

My doctor told me to take mucinex. It is available over the counter and it works well for me.