I don’t really know what might be going on here, but I suppose you could have some resistant bacterial infection of the cervix. Some things we cannot test for routinely yet that are bacterial. Have you had pap smears of the cervix to know if it could be HPV infection? If your HSV PCR was negative, then I”m not thinking it is herpes, I wonder why she thinks that, because there is no other obvious explanation? I’m guessing you are not FEELING the cervix irritation as most people cannot really feel things going on on the cervix – they might notice discharge or lower abdominal pain but feeling something on the cervix itself is not common. Are you certain the burning is not due to yeast?