In December of 2012 I had an abortion and it seems I had some sort of an allergic reaction and my vagina was very itchy a short while after. Then the itching stopped and in March of 2013 there became a discharge that would not smell or sometimes would smell a bit sour however this has been present continually all the way to this very second every blue moon there will be a loud rotten egg smell along with the discharge especially near monthly time. I have taken antibiotics for bacterial vaginosis but there has been no improvement. Please help!