I've got naturally fine hair but for the past year I've noticed my temples and hairline starting to get thin, it's weird though because it sometimes itches around my hairline and temples and I've noticed some red bumps/scab looking things where it itches and a few hairs will fall out...anyways I'm looking into rogaine foam because I need to do something about this to feel better...I've read that you shed like crazy at first, but the thing is I've got a 2 week jail sentence in June so would it be worthless for me to use rogaine for a month and a half then quit for those 2 weeks? I'm afraid my hairline will get demolished if I do that...what should I do???