hey after seacrhing the internet for weeks for answere to my 5 month sore throat i found an articale on the web for allergies to preservatives like sulphur dioxide its paticualry ripe in dried fruit and i eat that for breakfast and one of the symptoms on the list for this allergie is sore scracthy throat yyyyyyyessss this might be my answere so now im gona check everything i buy for preservatives this must be my answere i only found this a few hours ago here ill give u the link
http://www.health24.com/dietnfood/Food_causing_disease/15-737-740,14452.asp

i hope this makes alot of ppl hapy it sure has given me ALOT of hope