Dog Bite First Aid: What to Do in the First Hour

Dog bite first aid comes down to four steps: get away from the dog, stop the bleeding with firm pressure, wash the wound under warm running water with mild soap, and cover it with a clean bandage. If the skin is broken, see a doctor within 24 hours, even if the bite looks small.

That is the short version, and it is what every hospital page on the subject will tell you. This guide adds the two things those pages leave out. The first is exactly when home care stops being enough. The second is that the few minutes after a bite are also when the facts about the dog and its owner are easiest to collect, and hardest to recover later.

Whether you were bitten yourself or you’re helping a child or a partner, start with the steps below. Read the rest once the wound is clean and covered.

Dog Bite First Aid, Step by Step

1. Get to safety. Put a door, a car or a fence between you and the dog before you do anything else. A second bite is worse than a delayed bandage. If the attack is still happening, our guide on what to do if a dog attacks you covers how to protect yourself in the moment.
2. Wash your hands if you are treating someone else. MedlinePlus, the National Library of Medicine’s consumer health site, says to wash your hands with soap and water before treating the wound, put on latex gloves if it is bleeding and you have them, and wash your hands again afterward.
3. Stop the bleeding. Press a clean, dry cloth or sterile gauze firmly on the wound. Johns Hopkins Medicine says to call a healthcare provider if bleeding hasn’t stopped after 15 minutes of pressure. For serious bleeding, call 911.
4. Wash the wound. Hold it under warm running water and use mild soap. Let the water flow into the wound. Don’t scrub. The next section explains how long to wash and why the sources give different times.
5. Cover it. Pat the area dry, apply a thin layer of antibacterial ointment, and put on a dry, sterile bandage. This is the sequence both MedlinePlus and Mayo Clinic’s animal bite first aid page give.
6. Decide whether this needs a doctor now or later today. If the skin is broken at all, the answer is at least “later today.” The list under When Home First Aid Is Not Enough tells you which bites need care right away.

Every one of these steps is about the wound. None of it requires you to talk to the dog’s owner yet, and none of it should be delayed to take photos or collect names. Treat the injury first. The rest can wait ten minutes.

How to Clean a Dog Bite (and What Not to Put on It)

Clean a dog bite with mild soap and warm running water, for at least 3 to 5 minutes and for a full 15 minutes if there is any question about rabies. Running water does most of the work. It flushes saliva and bacteria out of the wound, which is the whole point of washing.

The three main sources give three different times, and the difference is not a contradiction:

• 3 to 5 minutes: MedlinePlus, for routine bite wound care.
• At least 5 minutes: Johns Hopkins Medicine, “under pressure from a faucet.”
• 15 minutes: the Centers for Disease Control and Prevention (CDC), which says to wash any wound immediately with soap and water for 15 minutes “to flush out any virus” after a bite or scratch from wildlife or an unfamiliar animal.

If you don’t know the dog, or you don’t know whether its rabies shots are current, use the CDC’s 15 minutes. It costs you nothing but time at the sink.

What not to do

• Don’t use hydrogen peroxide or rubbing alcohol. Kaiser Permanente’s animal bite care instructions say both can slow healing.
• Don’t scrub. Johns Hopkins Medicine says scrubbing may bruise the tissue. Let the water do the flushing.
• Don’t tape it shut. Johns Hopkins also says not to use tape or butterfly bandages to close a bite wound, because closing it can trap harmful bacteria inside. Whether a bite should be stitched is a doctor’s decision, and Kaiser Permanente notes that many animal bites are not closed with stitches because closing them can raise the chance of infection.
• Don’t assume a small wound is a shallow one. MedlinePlus lists tendon and joint injury and crushing injuries among the things a bite can cause. A neat pair of puncture marks on the surface tells you very little about what is underneath.

One point where the sources genuinely differ: Mayo Clinic and MedlinePlus both say to apply an antibiotic ointment as part of first aid, but Kaiser Permanente’s aftercare sheet, written for wounds a doctor has already treated, says to avoid antibiotic ointment unless the doctor recommends it. The practical answer is simple. Use it for first aid at home, and once a doctor has seen the bite, follow their instructions instead.

When Home First Aid Is Not Enough

Home first aid on its own is only enough for a bite that didn’t break the skin. MedlinePlus says to see a provider within 24 hours for any bite that breaks the skin, and sooner for the warning signs below.

MedlinePlus says to contact your provider right away if the bite is on the head, face, neck, hands or feet, and to contact your provider or go to the emergency room if:

• The bite is deep or large, or you can see muscle or bone.
• You aren’t sure whether it needs stitches.
• The bleeding doesn’t stop after a few minutes of pressure.
• You haven’t had a tetanus shot in five years.

Two deadlines matter here. The first is the 24 hours MedlinePlus gives for any broken-skin bite. The second is tetanus: Mayo Clinic says that if your last shot was more than five years ago and the wound is deep or dirty, a booster may be recommended, and it should be given within 48 hours of the injury.

Rabies is its own decision, and it is not one to make at home. The CDC says anyone who may have been exposed to rabies should contact their health department immediately, and that people who need the vaccine and don’t get it before symptoms start will most likely die. If you don’t know the dog’s vaccination history, read our guide on being bitten by an unvaccinated dog for how that assessment works.

Where the bite landed changes the care, too. A bite on the face is usually repaired by a specialist (see dog bite on the face), hand bites can hide tendon and nerve damage (see dog bite on the hand), and leg bites often happen through clothing that hides how much tissue was crushed (see dog bite on the leg). If the teeth never broke the skin at all, our guide to a dog bite that didn’t break the skin covers what that kind of bite can still do.

First aid lowers the risk of infection. It doesn’t remove it. Redness, swelling or pain that gets worse over the following days is a reason to go back to a doctor, and our dog bite infection guide explains which signs need care the same day.

The Five Minutes After the Bite That Matter Later

Once the wound is clean and covered, get the dog owner’s name and contact details and ask to see proof of the dog’s rabies vaccination, before anyone leaves.

This is medical advice first. The CDC’s rabies guidance says that if the animal that bit you is a pet, you should ask the owner for proof that it is up to date on its rabies vaccination, because that information is important in deciding whether you need rabies treatment. Your doctor or the health department will want to know it.

The same details do a second job. The owner’s name and address are how anyone finds the homeowner’s or renter’s insurance policy that usually pays for a dog bite (our guide to whether insurance covers dog bites explains how). Once the owner has driven off, that can be very hard to get back.

If you are able, collect:

• The owner’s full name, phone number and home address.
• The dog’s name, breed or description, and whether it was on a leash.
• The rabies vaccination record or tag, or a photo of it.
• The names and phone numbers of anyone who saw it happen.
• Photos of the wound, taken after the bleeding is under control. Don’t delay washing to take pictures. Then photograph it again every day or two as it heals, because the first photo rarely shows the full injury.

If the owner refuses to share anything, or the dog is a stray, MedlinePlus says to contact animal control or the local police when you are bitten by an unknown pet, an unvaccinated pet or a stray. Our guide to what happens if you don’t report a dog bite covers why a report helps you.

Why Skipping the Doctor Can Cost You Twice

A bite that broke the skin and was only ever treated at the kitchen sink carries two risks: an infection that nobody is watching for, and no medical record showing the bite happened or what it did.

The medical risk is the reason for the 24-hour rule. A provider can decide whether the wound needs antibiotics, a tetanus booster, rabies treatment or closing, and MedlinePlus notes that some wounds need surgery to clean and close properly.

The second risk shows up later. When a bite turns out to be worse than it looked, the medical records are what show the injury began with the dog. A gap of days or weeks between the bite and the first visit to a doctor is exactly what an insurance adjuster looks for. It lets them argue that the injury was minor, or that something else caused the problems you are now being treated for. Our guide to the medical evidence in a dog bite claim explains which records carry the most weight.

If you cleaned and bandaged a bite at home and it still hurts, swells or limits how you use a hand or limb, get it seen today, and talk to a lawyer before the owner’s insurance company asks you for a recorded statement. A first visit days after the bite is the gap an adjuster will point to, and what you say on that call can be used to argue the injury is small. Our dog bite attorneys will tell you for free whether you have a claim, with no obligation and no fee unless we win. Call 312-786-4442, day or night, or use our contact form.

What to Do Now: Your First-Day Checklist

1. Finish the first aid: pressure, a long wash under running water with mild soap, ointment and a clean bandage.
2. See a provider within 24 hours if the skin is broken, and right away for the warning signs above. Tell them it was a dog bite and ask about tetanus and rabies.
3. Get the owner’s details and the rabies vaccination record before anyone leaves.
4. Report the bite to animal control or the police, especially if the dog is a stray, unvaccinated or unknown to you.
5. Photograph the wound once the bleeding has stopped, and again as it heals.
6. Keep every record: the visit summary, receipts for prescriptions and supplies, and a note of any time you miss from work or school.
7. Talk to a dog bite lawyer before you talk to the owner’s insurer. The insurer’s first call often comes within days, and a free consultation tells you what your claim is worth before you say anything on the record. Call 312-786-4442 any time.

Filing deadlines for injury claims vary by state. Our guide to the dog bite statute of limitations lists them, and how to file a dog bite claim walks through the rest of the process.

Frequently Asked Questions

What are the do’s and don’ts after a dog bite?

Do stop the bleeding, wash the wound under warm running water with mild soap, cover it with a clean bandage, and see a provider within 24 hours if the skin is broken. Don’t use hydrogen peroxide or rubbing alcohol, don’t scrub, and don’t tape the wound shut. Kaiser Permanente says peroxide and alcohol can slow healing, and Johns Hopkins Medicine says scrubbing can bruise the tissue and tape can trap bacteria inside. Before you leave, get the owner’s name and the dog’s rabies vaccination record.

Does hydrogen peroxide help dog bites?

No. Kaiser Permanente’s care instructions for animal bites say not to use hydrogen peroxide or alcohol on the wound, because both can slow healing. Clean the bite with mild soap and warm running water instead. MedlinePlus says to rinse for 3 to 5 minutes, and the CDC says to wash for 15 minutes when there is any question about rabies.

What can I use to disinfect a dog bite?

Mild soap and warm running water. That is what MedlinePlus, Mayo Clinic, Johns Hopkins Medicine and the CDC all recommend for cleaning a dog bite. The running water flushes saliva and bacteria out of the wound. After washing, MedlinePlus and Mayo Clinic say to apply a thin layer of antibacterial ointment and a clean bandage. Once a doctor has treated the bite, follow their instructions instead.

Do I need to see a doctor for a minor dog bite?

Yes, if the bite broke the skin. MedlinePlus says to see a provider within 24 hours for any bite that breaks the skin, however small it looks. A provider can decide whether you need antibiotics, a tetanus booster or rabies treatment. A visit also creates a medical record of the bite, which matters if the injury turns out to be worse than it first appeared.

How soon after a dog bite should I see a doctor?

Within 24 hours for any bite that breaks the skin, and right away if the bite is on the head, face, neck, hands or feet. MedlinePlus gives both of those timelines, and also says to contact a provider or go to the emergency room if the bite is deep, shows muscle or bone, or keeps bleeding after a few minutes of pressure. Mayo Clinic adds that a tetanus booster, if you need one, should be given within 48 hours. If the dog might have rabies, the CDC says to contact your health department immediately.

Bitten by a Dog and Treated It at Home? We Can Help.

A bite treated only at home leaves no medical record, and every day without one is a day the insurer can use to argue your injury was minor. If you or a loved one was bitten or attacked by a dog, Dog Bite Laws, the dog bite injury team at Mike Agruss Law, offers free, no-obligation consultations to review your case. We work on contingency: No Fees Unless Until We Win. Call us at 312-786-4442, available 24/7, or reach out through our contact form to discuss your rights and options. You can also read more about how we handle these cases on our dog bite page.

This information is provided for educational purposes and does not constitute legal advice. Dog-bite laws vary by state, and every case is unique. Results depend on the specific facts and circumstances.