well you can either squeeze the area where the wolf worm is and it will come out on its own or use tweezers to get it out. if you still can't get it out call the vet.
Wolf Worm:
This fat parasite is the larvae of the bot fly and will eventually hatch into an adult bot fly if not removed. Wolf worms are commonly picked up around rabbit burrows as the rabbit is one...
There is no such parasite called Wolf Worms. There are many other internal parasites, such as round worms, whip worms, hook worms, tape worms, etc. You should have your dog checked for parasites....
Many parasites, such as various types of worms, are highly opportunistic, meaning they will infect any warm body they can get into. I have never heard of "wolf worms," so cannot tell you for certain...