I'm having a dark brown discharge, it can be pretty bad sometimes. I'm not on birth control or my period. What can I do to make this stop?

See your doctor. Brown discharge is typically light bleeding. There are lots of causes of bleeding, including pregnancy, stds, other infections, polyps, or fibroids. You should see your doctor.
See a doctor. This could be old blood from breakthrough bleeding but this is not a normal discharge and should be checked out by your doctor.