I have nearly always had a burning sensation during sex. It does seem to come and go. At times it is very intense and even burns for awhile after sex. Sometimes, however it is almost nonexistent. I went to the doctor and all she could come up with was a lack of lubrication, however, no amount of lubrication even lessens the pain. It is a very deep pain, not on the vaginal lips. I am on the NuvaRing and while it is supposed to be hypoallergenic, I am concerned that it is causing irritation. Has anyone else experienced similar problems? If so, what was it diagnosed as and what was the treatment? I really love my NuvaRing and am praying it is not the cause.