First, read the English article below.

Once you notice that your dog is injured, get control of him and calm him down if he's over-excited. Soothe your dog by petting him gently and speaking to him in a low, calm voice. Make sure to stay calm yourself, even if you're worried. Your dog can read your body language and knows your voice intonations very well. He'll pick up on your behavior and follow your lead. You need to keep your own safety in mind when handling an injured animal. Even if your dog is normally sweet and loving, he may lash out to protect himself from further pain. If you're at all worried for your safety — if your dog starts growling or snapping at you, or if the dog has a previous history of biting when agitated — muzzle your dog.  If you don't have a muzzle, wrap a leash or light rope around your dog’s muzzle.  If he raises a big fuss, stop and get your pet to the veterinarian as safely as possible. Protect yourself by putting a blanket or towel over him before moving him to the veterinary hospital. While cleanliness is important, it's actually more vital to stop profuse bleeding as soon as possible. If blood seems to be pulsing out of the wound, the dog likely has an arterial injury that could be very dangerous; pulsing blood should be taken very seriously.  Apply direct pressure to the wound using a clean, absorbent material like a towel, washcloth, shirt, gauze, or even a feminine hygiene pad. Keep pressure on the wound for 3-5 minutes before checking to see if the bleeding has stopped. If you keep taking off the pressure, you disturb the blood clot trying to form, and delay the process. A tourniquet should be your last resort to control bleeding. Applying one incorrectly can lead to complications that might result in tissue death. Your pet might need amputation if you cut off circulation. If you don't have training in applying a tourniquet to a dog, call your vet for expert instruction to go along with this general guideline.  Place a clean towel or pad around the limb (but not around the neck, chest, or abdomen). Use a belt... 

Now, please write a short abstract for it in Chinese. Abstract:
安抚爱犬。 如有必要，给爱犬带上口套。 及时处理出血。 只有在必要，并且有专家指导的情况下，才可以使用止血带。