Cabbage leaves - relief of Mastitis or dry up milk?

I need some help...I've developed Mastitis and i've only had my milk in for about 3 days now...i just had my baby the 31st. Many people told me to try cabbage leaves to relieve the pain and that it works wonders, but then some others told me it would dry up my milk..i looked it up online and only found the same thing, some people saying yes it worked to stop the pain, and others saying they used it to dry up their milk. So does anyone know for sure what it actually does? Because i dont want to dry up my milk i just need some relief here, im dying!