I'm not sure about the severity of the problem, but I will give advice based on my personal experience.
The best thing definitely would be to get out on a nice warm day and bring him out into a big open space with a spray bottle full of water...then do an average pressure/release deal. Start spraying him and follow him around when he moves and ignore his reactions, just keep spraying consistently. Stop spraying when he shows any better result (if his head was in the air, stop when he lowers it; if he was moving away, stop when he holds still even for a minute; etc.) and completely remove all pressure, maybe give him a pat and then turn your back. He'll likely lick his lips. Wait a few seconds for him to think and relax, then start again. Continue gradually until he accepts it as calmly as you want him to.
This part can be completed usually in a pretty short time, under an hour for pretty sure...but you may have to repeat over a few days until there is never any reaction. It should work out if you take the time to do this as long as you make sure that you never stop spraying while he is moving away or reacting otherwise negatively, because feeling the pressure of something he doesn't like and looking for relief and needs to be taught that the relief comes from standing nicely until you are finished.
Last edited by rocky pony; 04-29-2010 at 02:13 AM.