Hi tiff! I'm not sure what a cyst discharge would look like, I do believe that the castor oil helps our bodies expel things though! Last year before ttc I would get many days of brown spotting before af. I found that if I did a castor oil pack it would bring on my full red flow within about 12 hours. It was a little scary how efficient it was! So, yeah, not sure if any of this is helpful but I do believe it is just getting all the stuff out of your system! I really hope it works for you!
AFM- on anywhere from 4-9 dpo (bad opk's.. grrrr) and have already started poas. I don't know why I torture myself! BFN so far, but you never know! Good luck!