to start with if you are flushing because something other than DOT approved has been introduced to the system stop and change all components that have rubber in them ( for safety sake) if not then...
One thing you can do is monitor your diet - no caffeine, no tomatoes, or anything that contains either of these (including chocolate, coffee, strong tea, cola, some painkillers, pizza, pasta sauces -...
One thing a man can help his hot flashes, is testosterone replacement(when men get hot flashes it comes when hormones get low).
There is some natural suppliments, black cohosh, soy, wild yams.
Also...