I would go an ask in a chemist & ask if they think you should see a doctor or maybe they can give you something over the counter. Hope you feel better soon :)
Hi,
If you feel that your sore throat still persists better to start on antibiotics as well do some povidone iodine gargles. Also, you can start on mild pain killers, drink plenty of warm water and stop smoking. Even after this if the pain does not subside please do consult your ENT specialist for a thorough check up.
Regards
OHNS2010