Pain!

years ago there was a pharmacist in Westwego, La. that made some drops that would instantly kill the pain of a flash. It would deaden the nerves of the eyes. All welders had a bottle at home. This $hit was worth it's weight in gold. They made him take it off the market.

The best thing to do is when you feel one coming on, knock back a six pack or two and get to sleep as fast as you can. Don't stay up trying to fight it. A flash is hundreds of little blisters on the eye and they start popping and that is what feels like sand in your eyes. It will
last until all blisters finish popping. I had them so bad that my eyes were literally stuck closed.