Hi, I am currently taking doxycycline hylcate for an STD. I was treated Monday with azithromyacin and an injectable antibiotic, but I'm still continuing my doxycycline regimen which is two weeks. This means I basically used three different antibiotics at a time. Two oral, and one intravenous. Should I stop taking doxycycline since I already got treated with the other two antibiotics?