I had taken Doryx (doxycycline) for acne for about three weeks when I suddenly developed burning "down there"(more towards the urethra) . I stopped the Doryx last week and I was diagnosed with a yeast infection by my doctor and was told to use a 3 day Monistat and take 2 rounds of diflucan. I still have the burning and the gyno doesn't know why and does she not seem to care. It can not be an STD. Did anyone experience this after taking doryx and did it ever go away?