Neo-penotran suppository contains a combination of an antibiotic (metronidasol) and antimycotic (miconazole) and is used for treating bacterial vaginosis, a yeast infection of the vagina and infection with Trichomonas.
I believe that nothing bad will happen to your husband.
You shouldnât have sex while treating your bacterial vaginosis. At least you shouldnât wash the suppository off before the sex. The suppository is soft and dissolves inside the vagina so I donât think it could disrupt the sex. Discontinuation of the therapy for one day may not worsen the infection but you can try not to let it happen again. You can continue with the suppositories as scheduled.