It's 4 am here and I think I can just about risk going 2 bed at this time and not get a hangover (in theory anyway)!
LOL! Good luck!
For fly spray, I started out with just water. I did a nice spritz on hot days until she got the hang of it. Never near the face, just on the chest, shoulders, back, side, butt, legs... Once she discovered the cool water felt good, I went to fly spray. I never spray her face, and I made sure none of the spray went toward her face. I started with her legs and worked up, then the chest, shoulder, neck, back, butt...
Some horses just hate the smell, and have a really hard time dealing with the spray. Another method is to soak a wash cloth and wipe them down. I use this on the face anyway, so when it is really windy, I just wipe her down instead of spraying.
The fly spray I switched to for this summer has to be wiped on anyway. I still use a spray bottle to give her a little cool spritz now and then of water.