yes
NOT mustard powder ! CORNSTARCH !... Cornstarch acts as a coagulant to slow down bleeding.
It will start bleeding...
Bleeding at the cuticle could be due to an injury, infection, or ingrown toenail. It's important to keep the area clean, apply a bandage, and watch for signs of infection such as increased pain, redness, or pus. If bleeding persists or is severe, it's best to seek medical attention from a healthcare professional.
Clean the area where the torn toenail is located. The dew claw or the toenail up on the side of a dog's paw is a primary location for this type of tear. Remove any hair or dirt off the dog to get a clear view of the injury. Shave or cut the hair from the dog's paw, if necessary, to allow for the appropriate medical care. Rinse the torn toenail with lukewarm water, not hot. You need to remove any blood or dirt lodged in the wound. Trim the broken end or the jagged end of the toenail that is dangling. If the toenail is broken down into the skin, you will need to take your dog to the vet for additional medical care. Stop any bleeding by applying a first aid antibiotic ointment gently with a cotton ball. You can also use silver nitrate or a styptic powder. If none of these is available, make a paste from household cornstarch or flour and pack around the wound. Leave the wound open to air dry and heal, provided your dog will leave it alone. Most torn toenail injuries need to have a bandage of sterile gauze wrapped around the paw area and secured by medical tape. Wrap the wound firmly, but not tight enough to cut off the circulation in the dog's paw. Keep an eye on your dog to make sure that they do not chew off the bandage to get to the wound.
tourniquet
What I always did was clean it and then I would get a band-aid to put over it to stop the flow of blood.
No, it doesn't. Dogs regulary have diffrent colors depending on their breed.
You do not get injured. If you do have wounds and bleeding, use the proper first aid rules.
Tourniquets are useful first-aid tools to control bleeding.
Put a band aid or any medic supply to it so it will stop bleeding
If you are bleeding when a dog puts his teeth on you that means it bit you. If you aren't bleeding that means it nipped or mouthed you.