Two months post-tonsillectomy, I m 41 yrs. old. I still have a funky, almost metallic, taste in my mouth and constant post-nasal drip-- feels like a pocket of phlegm on one side of my throat ALL THE TIME. My doc gave me a prescription nasal spray and said to rinse w/salt water 2-4x per day. Did so for 3 weeks, no change. What can I do??