Vaginal discharge from bacterial or yeast infections responds to treatment within a few days to a week. Sexually transmitted diseases should respond to antibiotic treatment within a week. If the infection progresses to a pelvic inflammatory disease beyond the vaginal area, it may take longer to treat.
Atrophic vaginitis responds best to hormonal therapy with vaginal creams or hormone-replacement therapy by mouth. It usually takes a few weeks to go away. Mild symptoms may be relieved within a few days with vaginal water-based lubricants. If an irritating substance causes your symptoms, identifying and removing the substance should relieve the symptoms within a week.