smoking could affect it, im not sure, i get sore throats on and off. specially in the morning, and this is the season for germs , my kids keep getting colds on and off and my husband. so far im still in good health for the moment lol Id say if its persistant id get it checked by a dr you neverknow what it could be . do u have a fever or just the sore throat? My dr didnt care when i had a sore throat when i wentbecause i didnt have a fever , they didnt even test for strep or give me anything to help it at all. hopefully u got a better dr then i lol

it is probably from smoking. If you are very worried about it you should go see a doctor.