I have a sinus infection which has caused to me to get a sore throat also accompanied by an ear infectionn. the question is .. is it safe to give my boyfriend fellatio while having the sinus infection .. ? although i already done so .. should he take?

It would be better to wait until your cold/sinus infection has cleared up. One possible cause of such symptoms is adenovirus, which can infect the urethra -- which is harmless but can be quite painful for several days. Adenovirus following oral sex causes up to 5% of nongonococcal urethritis (NGU). It isn't known if other respiratory viruses can do the same thing, but it is possible.

He will not get anything from you in this scenario