Thanks for the query.
Greenish vaginal discharge
can be seen in trichomoniasis
, bacterial infections etc.
Sometimes multiple organs can be involved in causing infection.
As she didn't use the medication prescribed regularly, the complete cure cannot be expected.
So better to consult gynecologist once again, get examined, if need go for vaginal swab culture and sensitivity and other needed investigation. Then according to the report take treatment.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429