Thanks for writing in.
As per your history, biopsy is conclusive of bacterial vaginosis
. So you need to take anti-bacterial one more shot as symptoms are still not relieved.
You can consult dermatologist
to make sure lesion is not lichen planus
. Treatment line differs completely. Steroids
are used for lichen planus which might increase bacterial vaginosis intensity.
Confirmation of lichen planus is done by biopsy only so do consider dermatological opinion before going for blind treatment.
I hope I have answered your query. In case of doubt, please revert back.