The full phrase is 'the hair of the dog that bit you' and means that the thing that caused an ailment can cure it too. The phrase originally comes from the ancient idea that the burnt hair of a dog is the antidote to the bite of a dog.

Road Rovers - 1996 A Hair of the Dog That Bit You 1-3 was released on:

USA: 21 September 1996

Well you can use a lint roller to get the dog hair out or if there is just a little bit you can pick it out. (If you have the patience.)

nothing realy but dog clippers are a bit sharper to get more hair off

HOPE this helps

I believe Bernese mountain dogs. Not so sure but i reasearched it for a little bit