The groomer did not want to hurt your dog. It happened, your dog will recover, and the only thing you're out is the vet's bill. I'd let the groomer pay the vet's bill, and, in good faith, I'd keep going back. Accidents happen, so try to fix things as best as possible, and don't let a mistake ruin a relationship.

Long hair on dogs needs to be cut regularly because without regular haircuts, the dog may be carrying around tons of matted coat, leading to misery for the dog as well as the owner. This is especially important in the winter – wet snow and dry air means the hair mats more easily.

Long-Haired Dogs They also need to be bathed every 4 to 6 weeks and have their hair cut every 8 to 12 weeks. You can strike a balance by visiting the professional groomer after every 6 weeks. Nevertheless, you may have to visit the groomer more often to keep your dog's skin healthy.

Pelting is a condition that happens when a dog's fur is so matted and tangled that it has to come off in one piece. It also pulls on the skin and doesn't allow air to flow through. If the pelting is bad enough then fleas and ticks can be trapped rendering flea treats ineffective.