Keep having frequent urination, burning when I pee and creamy discharge. Also strong rotten egg smell. Would monistat clear this up?

Monistat won't help. Any abnormal, new, or unexplained vaginal discharge needs medical attention. These symptoms are not typical for yeast, the only infection that responds to Monistat or similar treatments. Urinary pain, "creamy" discharge & odor are suspicious for an infection, including STDs like trichomonas, chlamydia, or gonorrhea; or bacterial vaginosis (overgrowth of mostly normal bacteria). See a doctor ASAP.
Monistat. It might but it would not be wise. Please contact your family doctor and expelling your concerns. If the doctor says Monistat is OK take the advice. If the doctor wants you to see her/him soon please do so.