Suggest Treatment For Headaches And Blurred Vision

I ve had a small headache since Monday on the left side of my forehead. Tuesday, I flushed my sinuses and blew my nose and felt very cloudy, dizzy, hot, and blurred vision for a couple of minutes. That subsided, but the headache got worse over the course of the day and double vision (left of center) started and got worse by that night. Yesterday, I saw a neurologist who examined me and said I have VIth (6th) Nerve Palsy in my left eye. I had a CT of my head, neck and sinuses performed and a CTA of my head and neck. There are no aneurysms or tumors seen (yay!), only a 3cm left maxillary sinus cyst (and C5-6 spinal stenosis). But no sign of what s saucing this. My Question: because the major symptoms started after the sinus wash and blowing my nose, could the cyst in my sinus be causing the 6th Nerve Palsy and headache? Could I have dislodged (or lodged) something in my sinuses causing this?