Restraining an Injured Boxer
If your boxer has been hit by a car, the first thing that you must do is to restrain him so that he doesn't follow his instincts to run and hide in a quiet, safe place. It is best to wrap him in a blanket, which puts no pressure on his injuries but will help to keep him from flailing about and injuring himself more. This is what the blankets in your veterinary emergency kits are for — that and to move your boxer with the least amount of pressure on the injured area as possible.
If you can get someone to drive you to the vet, you can hold your boxer down gently. It is very important to avoid putting pressure on the injuries unless you are attempting to prevent your boxer from bleeding to death.
When moving an injured dog, you need to take special precautions. It is best to fashion a stretcher from any available materials, such as a board, piece of plywood, or a blanket. Move your boxer as gently as possible, without allowing any injured limbs to dangle or be jostled too much. The most important thing is to get your boxer to a vet as quickly as you safely can. Have a friend or family member drive while you comfort your boxer and prevent him from moving.
During your boxer's recovery phase, you will find the best way to help your boxer to heal is to keep him in his crate. Crating a hurt dog is a very common thing to do, especially during recovery from surgery or from extensive soft-tissue injuries. With many types of traumas, it is almost certain that crate rest will be prescribed.