Can Ovestin globules be used vaginally with Metronidazole?

It is not recommended to use more than one vaginal preparation at a time. If this was the doctor's recommendation, it is better to keep a time interval to facilitate the absorption of both drugs. In the absence of information from the doctor about the dosage regimen, you should turn to him yourself with such a question to be clear what, when and how to take. Outsiders who do not have knowledge about your health will not be able to help and establish an appropriate treatment regimen. This is the competence of the doctor, in this case the attending physician. I also encourage you to read the article: https://www.gdziepolek.pl/artykuly/jak-stosowac-preparaty-ginekologiczne