So you took Clindesse yesterday and today you think you have a yeast infection? Maybe the medicine is still working?
Why do you think now that it is a yeast infection? Maybe it is still the bacterial infection? A yeast infection would not be an allergic reaction to clindesse. It could be possible, I think, because a yeast infection occurs when there is more yeast than bacteria. (both are present in a healthy vagina) and antibacterials obviously kill the yeast.
Douching would remove the medication but not treat a yeast infection. I would go back to the doctor.