This sounds like pain from the middle ear which can be felt thoughout the same side of the face. Pain on swallowing may indication middle ear or eustachian tube inflammation. Do you have a fever? Any swelling in your face or behind your ear?
In general it doesn't sound serious, but if it's been persistent for a while I'd have someone check you.
Good luck, Quix
Hi,
This could be mastoiditis and is related to your eustachian tube.
Have you seen an ENT specialist or your doctor for your symptoms? Do you have any associated symptoms of pain, discharge, fever, etc?
'Mastoiditis is an infection of the mastoid process, the portion of the temporal bone of the skull that is behind the ear. It is usually caused by untreated acute otitis media (middle ear infection) .'
You could read more about the condition at the following links -
http://en.wikipedia.org/wiki/Mastoidectomy
and
http://www.emedicine.com/emerg/topic306.htm
Let us know about how you are doing and if you have any other doubts.
Post us about what your doctor advises.
Regards.