Ya know there's a reason that we go to ENT specialists and there is a fundamental truth to the kids song ... the ear bone's connected to the ...
ear nose throat
something goes funky with one, it's good odds that something will happen to at least one of the other two
lots of possibilities
- the infection from your sinuses has also gone into your throat
- the drainage of gunk from your sinuses is irritating your throat - and it is nasty, irritating gunk
...
have you looked at medlineplus.org? lots of helpful information tucked in there
have you been to the doctor about your sinus infection?
i didn't go last year, or at least not soon enough, and really mucked things up for myself - got yelled at by the doctor for trying to cover up sinus infection symptoms myself - i'm not allowed to mess with decongestants anymore