A small, shallow scrape can be rinsed with plenty of lukewarm tap water or saline, kept away from your dog's tongue, and shown to your vet. A wound that is deep, gaping, still bleeding, a bite, a puncture, or on the face, eyes, chest, belly or a joint needs a vet now, not a home rinse.
So run through the vet-now list below before you reach for the water.
When to Take Your Dog to the Vet (Check This First)
Go to your vet or the nearest emergency hospital now if any of these is true:
- Bleeding won't stop with steady, firm pressure, or the blood spurts or pulses (a sign of a damaged artery).
- The wound is large, deep or gaping.
- It is a bite, or your dog was in a fight. Small tooth punctures close over fast and are easy to miss under fur, while the damage underneath can be serious.
- It is a puncture from a stick, nail, thorn or anything sharp.
- Something is stuck in it. Leave anything stuck in the wound for your vet. If an object has impaled your dog, don't pull it out: keep your dog as still as you can and go.
- It is on the face, near the eyes, or on the neck, chest or belly, or over a joint. Bites to the chest and belly can injure the organs inside, neck wounds can reach major blood vessels and the windpipe, leg wounds can reach a joint, and eye injuries can threaten sight.
- It is a burn or a snake bite.
- Your dog seems unwell, for example weak, limping, crying or whining, breathing hard, with pale or blue gums, or collapsing.
Bite wounds are a timing problem too. VCA's veterinarians note that bite wounds treated within six hours of the injury have the best chance of healing without complications.
What counts as minor? Blue Cross, a UK animal charity whose advice is reviewed by vets, gives cuts and grazes as examples of minor wounds and sends deep wounds and infected skin (redness, discharge, pain, swelling) to the vet. So if the wound is a small, shallow scrape, the bleeding has stopped, and nothing on the list above applies, you can rinse it while you call. Even then, the AVMA is clear that first aid is not a substitute for veterinary care. Call your vet, describe the wound, and let them decide whether your dog needs to come in. If cost is what's holding you back, we've collected options for when you can't afford a vet.
What Can You Put on a Dog Wound?
Less than you might think. For most wounds, warm tap water is what VCA's veterinarians recommend for cleaning, and warm saline (salt water) works too. The Merck Veterinary Manual calls saline the least harmful liquid for healing tissue, but it is not an antiseptic. It doesn't kill germs. It washes dirt and bacteria out, and Merck's point is that the amount of liquid you use matters most.
Anything stronger is your vet's call. Depending on the wound, your vet may recommend a dilute cleanser such as chlorhexidine, a surgical soap or an iodine solution, and will show you how to use it. Don't reach for those on your own.
How to Make Saline Solution for a Dog Wound
VCA's veterinarians give this recipe: add "approximately one level teaspoon (5 mL) of salt or Epsom salt to two cups (500 mL) of water." (VCA Animal Hospitals)
A few practical points:
- Use it lukewarm. FirstVet and Blue Cross both start by boiling the water and letting it cool. Blue Cross suggests checking the temperature on your wrist before it touches your dog.
- Keep homemade salt water away from the eyes and ears, where it can irritate (Blue Cross). An eye injury is a vet visit anyway.
- No time to mix? Plain lukewarm tap water is fine for a first rinse. Drugstores sell saline spray (VCA), and the AVMA notes that saline sold for contact lenses works for most first-aid purposes.
Blue Cross adds one more boundary: it recommends salt water bathing at home only when your vet has advised it, because some wounds need more than a rinse.
What Not to Put on a Dog Wound
Skip everything in this table unless your vet tells you otherwise.
Don't use | Why |
|---|---|
Hydrogen peroxide | Damages healthy tissue (Merck); the AVMA says not to use it on wounds |
Rubbing alcohol | VCA lists it among products that can delay healing |
Soap and shampoo | VCA lists them among products not to use; Merck notes detergents damage tissue |
Apple cider vinegar | No veterinary source we checked recommends it; VCA's rule is no other product unless your vet says so |
Tea tree oil, turmeric paste, herbal mixes | VCA warns against herbal preparations and tea tree oil |
Human antibiotic ointments and creams | VCA: no ointments or creams unless your veterinarian directs |
The list is strict because dogs lick their wounds. VCA's veterinarians point out that some of these products are toxic if swallowed, and others slow healing.
Can You Use Hydrogen Peroxide on Dogs?
Not on a wound. The Merck Veterinary Manual is direct about it: although hydrogen peroxide is an effective antiseptic, it is toxic to healthy tissue and should not be used to flush wounds. The AVMA's first-aid guidance says the same, and VCA's veterinarians warn it can delay healing and make a bite wound worse.
The fizzing can look like the wound is getting cleaner, but Merck's concern is the healthy tissue it damages, the same tissue your dog needs to heal.
How to Clean a Dog Wound at Home
These steps are for a small, shallow wound that passed the vet check above. If anything changes as you go, like bleeding that restarts or a wound that turns out deeper than it looked, stop and call.
- Keep yourself safe. Pain makes even gentle dogs bite. The AVMA advises not hugging an injured dog, keeping your face away from its mouth, using a muzzle if your dog threatens to bite (never on a dog that is vomiting), and asking someone to help. Wear disposable gloves if you have them.
- Stop any bleeding. Press a clean cloth or gauze firmly on the wound and hold it for at least three minutes before you peek. Checking too early can keep a clot from forming.
- Look closely. Loose dirt often comes off when you flush in the next step. Anything still stuck in the wound after a gentle flush, or a wound deeper than it first looked, goes to the vet.
- Flush it. Gently squirt lots of lukewarm water or saline over the wound with a clean needleless syringe or a clean turkey baster, as VCA suggests. Plenty of liquid in a gentle stream is the goal: Merck notes that too much pressure can push debris deeper.
- Pat the skin around it dry and leave the wound bare. No ointment, cream or powder unless your vet tells you to use one.
- Stop the licking. Licking doesn't clean a wound; a dog's mouth is full of bacteria. An e-collar (the cone) is usually the most reliable option. A T-shirt, a dog coat or a stockinette sleeve can work, depending on where the wound is.
- Bandage only if you've been shown how, or you're far from help, like on a camping trip. VCA's advice: use nonstick gauze on the wound and wrap loosely, because a tight bandage can cut off circulation.
- Call your vet and tell them what happened. They'll tell you whether to bring your dog in and how often, if at all, to clean the wound at home.
What to tell your vet when you call: how it happened (fight, fence, stick, glass), when it happened, where on the body it is, how big and deep it looks, whether it is still bleeding, and how your dog is acting. A phone photo helps.
What to Do When Your Dog Has a Bleeding Wound
Bleeding is scary, and the first move is simple: firm, direct pressure with a clean cloth, towel or dry gauze.
- Hold it for at least three minutes before checking (AVMA).
- If blood soaks through, don't lift the cloth. Add another layer on top so you don't disturb the clot.
- Raise the area above the level of the heart if you can do it safely, to slow the bleeding (VCA).
- Severe bleeding, or bleeding that won't stop with steady pressure, means go now. Keep the pressure on during the drive, and have someone else drive if you can.
Not all bleeding is on the outside. The AVMA lists these as signs of internal bleeding: bleeding from the nose, mouth or rectum, coughing up blood, bloody urine, pale gums, collapse, and a weak, rapid pulse. Any of them means an emergency visit.
Why Are Some Wounds Left Open?
Sometimes your vet won't stitch a wound, and that's on purpose. According to VCA's veterinarians:
- Location or skin loss can make closing it impossible, for example on the face or high on a leg.
- Contaminated wounds that are more than a few hours old shouldn't be closed until the dead and dirty tissue has been removed surgically (debridement).
- Small bite punctures are usually left open so infection can drain out.
In some cases, VCA notes, closing a wound would cause more permanent damage than leaving it open to heal.
How to Prevent a Wound From Closing Too Quickly
Only do this if your vet sent your dog home with an open wound and showed you how. VCA's veterinarians describe gently massaging the skin around the wound with a warm, damp washcloth to help it drain, then dabbing away discharge so it doesn't crust over. Your vet sets how often.
A little clear, thin fluid is expected. Thick or colored discharge, or discharge that stays bloody, green or yellow for several days, is a reason to call.
Signs a Dog Wound Is Infected
Call your vet if you notice:
- Swelling or redness that gets worse instead of better
- More pain, or your dog won't let you near the area
- A bad smell
- Thick, colored, yellow or green discharge
- Your dog seems unwell
An infected wound is a job for your vet. Depending on what they find, your vet may clean the wound under sedation, place a drain, and prescribe medication.
Types of Canine Wounds
A wound is any damage to the skin or the tissue underneath. It can be open, like a cut, or closed, like a bruise.
Abrasions and Lacerations
Abrasions are scrapes; lacerations are cuts, often with ragged edges, from glass, sharp rocks or metal. Shallow scrapes are the classic home-first-aid wound. Deep or gaping cuts belong at the vet. Not every red patch is a wound, either: here is our guide to common dog skin problems.
Puncture and Bite Wounds
These are the wounds owners most often underestimate. As an American Kennel Club veterinary article puts it, a bite wound is like an iceberg: most of the damage can be under the surface. VCA's veterinarians consider every bite wound contaminated, because a dog's mouth is full of bacteria, and left untreated a bite can turn into an abscess or a spreading infection. If your dog was in a fight, call your vet right away, even if you can only find a small mark. More on how bites happen in our dog bite guide.
Insect Bites and Stings
Most stings cause only mild pain and some local swelling. But swelling of the face, snout or neck, trouble breathing, or repeated vomiting and weakness after a sting can mean a severe allergic reaction (anaphylaxis), which needs an emergency vet right away, according to Veterinary Emergency Group. Don't give human allergy medicine unless a vet tells you to.
Parasites cause their own skin damage. Ask your vet about flea and tick prevention, check your dog for ticks after walks, and learn what flea dirt looks like.
Bruises, Sprains and Strains
These are closed injuries: the skin is intact, but the muscle, tendon or joint underneath is hurt. You may see swelling or a limp rather than a cut. VCA lists limping after a fight as an emergency sign, and any injury that leaves your dog limping deserves a call to your vet.
DIY Supplies for At-Home Wound Care
Most of these come straight from the AVMA's pet first-aid kit list. Keep them together, and see our full pet first aid kit checklist.
- Phone numbers: your vet, the nearest 24-hour emergency hospital, and animal poison control
- A muzzle (never on a dog that is vomiting)
- A gauze roll, nonstick bandages or strips of clean cloth to control bleeding
- Self-adhering, nonstick tape and blunt-ended scissors
- Disposable gloves
- A small flashlight for looking at wounds
- A large syringe without a needle for flushing
- Sterile saline
- Clean towels
- An e-collar sized for your dog (ask your vet)
Leave antiseptics, ointments and clippers out of your kit unless your vet has prescribed them for your dog.
Quick Answers
Can I use Neosporin on my dog's wound? Not unless your vet says so. VCA's veterinarians advise no ointments, creams or disinfectants on a wound unless your veterinarian directs it, and dogs lick off what you apply.
Does salt water help a dog wound heal? Saline cleans; it doesn't disinfect or heal by itself. Its job is to wash out dirt and bacteria gently so the body can do the healing.
Is it OK to let my dog lick the wound? No. Licking doesn't clean a wound, and a dog's mouth is full of bacteria. Licking and chewing can also injure the site, which is why VCA's veterinarians recommend a cone or a covering.
The Short Version
Check the wound against the go-now list before you do anything else. For a small, shallow scrape, stop the bleeding with pressure, flush gently with lots of lukewarm water or saline, leave it bare, keep your dog from licking, and call your vet. Skip the peroxide, alcohol, vinegar and human ointments. Any sign of infection, or any bite or puncture, means a vet visit.
Sources
- Merck Veterinary Manual: Initial Wound Management in Small Animals
- AVMA: First aid tips for pet owners
- VCA Animal Hospitals: Care of Open Wounds in Dogs
- VCA Animal Hospitals: Wound care dos and don'ts
- VCA Animal Hospitals: Bite Wounds in Dogs
- American Kennel Club: Bite Wounds
- Cornell University College of Veterinary Medicine: Fast action, ingenuity saves impaled dog
- FirstVet: Pet First Aid: How to Treat Minor Wounds
- Blue Cross: Salt water bathing for pets
- Veterinary Emergency Group: 6 emergency signs if your dog was stung by a bee
This article is for general information and is not a substitute for advice from your veterinarian.
