Arachnoid cyst-help with CO?

A MRI last fall showed a large arachnoid cyst in the back of my head. Two neurologists say it is not causing my Parkinson's symptoms. They say in that location, I would be dizzy and falling, which I'm not. Two other neurologists reading a EEG scan said it probably wasn't Parkinson's and more likely the cyst. I've had sixteen Amalgam fillings replaced and done a serious heavy metal cleanse. While I feel a little better, the symptoms have not really improved much so now I'm looking at ways I can treat this cyst. Will Castor oil soak through the skull? Any thoughts would be appreciated. I'm just not buying into the Parkinson's diagnosis. Tweet