My dog is in the vet hospital right now because the prong of the collar punchured 4 holes in her neck. The vet said if I keep using it more then likely it will happen again. Has anyone else had this problem

We use a prong collar on our dog.. I'm not sure why you call it an invisible fence collar? Is there a collar from them that has a prong type attachment or something? Anyway I've never known anyone who's had this happen to their dog, but then I do knwo some dogs have thinner skin. Obviously the prong collar isn't working for you guys. You should check out head halters instead, and until her neck heals don't use any collar that will pull on her neck, including choke chains.

i think she is talking about an invisible fence collar that has a couple prongs sticking out that deliver the electric shock- see the subject of the post. i think minniyar you are referring to the chain type prong collar, not with an invisible fence? i also use a chain type prong collar and have had no problem with it. looks like your dog can't handle the prongs on the invisible fence collar. is there one with teeny things to deliver a shock? i've never used inv. fence so i don't know.