My partner and i had oral sex for the first time. Prior to doing it, I noticed that he had halitosis. Now that its official that he has sinusitis, which caused the halitosis, i'm wondering if its possible that i might have gotten an infection because of him having sinsusitis while doing oral. I have an strange itching sensation in my vagina. its almost like its bruised, while itching. Could it be an infection, and if so, what type?