I've had my Paraguard IUD for over two years and in this past year I developed persistent BV that does not get better from multiple and extended rounds of antibiotics. I have considered douching, either with products like Summer's Eve, or with homeopathic alternatives such as vinegar or tea tree oil. I am desperate to help clear up my BV but do not want to compromise my copper IUD. What are my options if antibiotics haven't worked, and just "keeping clean" and waiting it out, haven't cleared anything up?