It is possible that the previous treatment was not effective and that you are experiencing another episode of vaginitis. It is recommended to consider re-treating with the same medication or trying a different product, such as Canesoral or Terazol. Canesoral is an over-the-counter treatment for yeast vaginitis, while Terazol is a prescription cream that can be more effective for resistant cases. If you have any further questions or concerns, it is best to consult with a healthcare professional for personalized advice.