How can i the stop a vaginal itch caused by nuvaring?

Take it out: If you are convinced this is the cause (and this has been well reported), you may want to consider another means of birth control.

Talk to your doctor: You should see the doctor who prescribed the NuvaRing and get an exam. You could be allergic to the materials in the product or you could have something else going on - an std, yeast infection, etc. Get in and get checked.