 [ Symptoms ] is it possible to get pregnant from swallowing or anal sex [ Disease ] definitely in a sinus infection the tubes which clear fluid from the ears can easily be blocked giving pain behind the jaw and below the ears i have had these several times now and once the infection actually affected my jaw itself make sure that you get on anti biotics for the infection try saline sinus rinses neti pot or suchlike an otc spray called alkolol an ancient formula but it works wonders  last thing that i learned during my last sinus infection   do not use decongestants