Re: how long must you wait for bppv to go away
Its different for everyone. You can wait for the "crystals" to dissolve or you can do repositioning exercises which will move them out of there much faster. I found the MEP (Modified Epley Procedure) exercises to be the best/fastest. A trained doctor or vestibular rehabilitation therapist can perform the Epley Maneuver or you can do the Modified Epley at home yourself, twice a day. Check the sticky board for more info.
Good luck and feel better!