I know this topic probably has been done already, but I had a heck of time searching for it. I have some "crusties" forming near the upper part of my brush near the knot, and I need some suggestions on how to clean the brush without ruining it. Not that it matters, but it is a Vulfix Best Badger brush. I want to make sure I get as much off as possible, because even though I thoroughly rinse it out after every shave, these "crusties" seem to have stayed put for the time being. Any suggestions, tips or tricks are appreciated.