Depends on the amount of damage at the root. the age of the dog, the breed and the owners wishes. It could be anything from excessive bandaging to complete surgical (yes we make the puppy sleep for this) removal of the nail. Excessive bandaging usually works for the dew claw - the claw that is higher on the leg. It usually does not work for the toes that come in contact with the ground since just the act of walking can tear, or cause bandaging to shift which can rip the damaged claw further out of its socket. Depending on the surrounding tissue a couple of stitches are used to not reattach the claw itself, but to sew the skin together to hold the claw in place. it depends on the amount of damage, the kind of damage and if the vet believes the claw can be saved. ALL TREATMENT OPTIONS are Followed by a round of antibiotics and possibly pain reliever since the claw base (akin to the human nail bed) for a dog is extremely sensitive. If a dog develops infection at a claw, where blood flows very close to the open wound, infection can quickly lead to blood born infection which quickly spreads to other organs and in most cases kills the animal. In many instances an injection of antibiotic is used under the skin at the wound site to stop infection in its tracks at the wound itself especially where there is a high risk for spreading into the blood system. Followed by a several week dosing schedul of oral antibiotic to kill all possible infection. Further due to the way blood flows in the dog there may be need to sew up the vein leading to the nail to stop constant bleeding. This means removal of the claw. If the vein has been compromised then removal of the claw must take place. This is not anything that a layman should try to "fix" it needs a trained doctor who can assess the amount of damage to determine if the claw can be saved. Removal of the claw must be done in a sterile environment, it must be done surgically as well, meaning that the blood vessel needs to be clamped while the claw is removed, then stitched closed, unclamped and monitored for seepage. A dog can literally bleed to death from a torn off claw. Especially an older dog or a dog that has underlying bleeding issues. Many dogs are easy bleeders, depending on the breed. Most often the condition goes unnoticed since the coat of a dog hides the skin and bruising is not detected. usually by the time the dog is bleeding is the condition discovered. Again I stress THIS IS NOT A PROCEDURE That can be done at home. It must be addressed by a trained vet immediately - the sooner the better since most of the claws are in contact with the ground. Dogs do walk through ANYTHING including feces which can lead to other poisonings and diseases beyond simple infections.