I know this guestion has been posted a bunch of times,but I have long hair like six or eight inches long. How long will it take me to apply minoxidil? Which brand? how long will I have to wait after I apply it till I can shampoo or get my hair wet? Are there any techniques anyone with long hair uses to apply minoxidil? Sorry for all the questions but I travel alot and very often I don't have alot of time to mess around with things.