How is a fnac preformed on back of throat? Will they put me to sleep? And how long useually befor they typically have the results? I was told this is what they would probably have to do to the leassion on my throat, its been thier for 3 yrs and is getting bigger and also causeing pain and trouble swallowing...also no medicne has helped eather reduce it size or stop pain... now I also have severe sinus pain that dosnt respond to medicne n blurry vision in right eye constantly...proceded with severe headache 24-7...want to get this taken care of once and for all...3 yrs of non-complient medicnes n pain is too much.... should I ask for a certain precedure?.. cant eat at this point..all nutrition is liquid consumed...and appointment is not till june 16th..any ideas?.