Thanks for the query,
I would be able to answer better if you can reveal your age.
Anyways, Excessive foul smelling vaginal discharge
could be due to vaginal infection
I recommend you to get a swab test to diagnose cause of vaginal infection.
A pap smear
to rule out inflammatory cervical conditions.
Colposcopic guided biopsy to rule out malignancy if pap and colposcopy
Report to doctor if vaginal discharge is blood tinged.
Hope this helps,