Hi, I have post-nasal drip from allergies. My sinuses
are really irratated and I am positive it is not an infection. I take Astelin, Nasonex, Zyrtec, and Singulair everyday. I am allergic to pseudoephedrin, aspirin, amoxicillan and erythromycin. I now have build up in my chest and drainage affecting my throat and voice. Besides expertorant and nasal wash, which I have been doing are there any other suggestions.