I don't know how to get quills out but I know how not too. I was reading outdoor life and they had a tips for hunters section. It said if your dog gets quills in it;s face just tie a rope around his waist and toss it over a rafter in the garage and pull him up high enough to pull the quills out. When I lifted my german shorthair up he turned into a pitbull and almost tore my shirt off before I let him down then we went to the vets.