Most dog bite guides online are written like a legal disclaimer, not something you can actually follow in the panicked two minutes right after it happens. So here’s the version I’d actually want handed to me — for a bite from your own dog, a friend’s dog, or an unknown dog, on yourself or someone you’re with.
Quick disclaimer: I’m a pet parent and content researcher, not a medical doctor or a veterinarian. This is first-aid guidance, not a substitute for a real medical evaluation, which every dog bite that breaks the skin needs.
The first five minutes
- Get away from the dog safely — don’t try to punish or corner it further; the priority is stopping any further injury.
- Wash the wound — mild soap and warm running water for 5–10 minutes. This single step does more to prevent infection than almost anything that happens afterward.
- Control the bleeding — a clean cloth with light, steady pressure. Don’t use hydrogen peroxide on the wound itself; it can irritate the tissue rather than help.
- Cover it — a clean, non-stick bandage that still lets the skin breathe, not an airtight seal.
For minor surface scrapes, an over-the-counter antibiotic ointment (like Neosporin or bacitracin) under the bandage is reasonable, per GoodRx’s wound care guidance.
Every dog bite that breaks the skin needs medical evaluation
This is the part people skip, and shouldn’t: per Cleveland Clinic, even a bite that looks minor should be seen by a doctor, ideally the same day and within 8 hours, specifically to check for infection risk and discuss whether preventive antibiotics or a tetanus booster are needed.
Go straight to urgent care or the ER, don’t wait, if:
- The skin is badly torn, crushed, or bleeding won’t stop with pressure
- The bite is on the hand, face, or over a joint — these carry a higher infection risk and sometimes functional risk
- You don’t know the dog, its owner, or its vaccination history — this raises the question of rabies exposure and needs to be assessed urgently, not “wait and see”
- The person bitten has a condition or takes medication that weakens their immune system
On the rabies point specifically: if there’s any doubt about the biting animal’s vaccination status, this is exactly the scenario post-exposure treatment exists for, and it’s time-sensitive. We go into this in more depth in our guide to rabies in dogs — worth reading regardless of which side of the bite you’re on.
Watching for infection over the next few days
- Redness that’s spreading away from the wound, rather than fading
- Increasing pain or swelling instead of gradual improvement
- Pus, cloudy drainage, or a foul smell
- Fever
- Red streaks tracking away from the bite on the skin
Any of these means go back for medical attention rather than waiting it out — these are signs the wound is actively infected, not just healing slowly.
What about your own dog’s wound, if it was bitten by another dog?
The same first-aid logic applies — clean the wound gently, control bleeding with light pressure, and don’t apply human-only products without checking with a vet first. Puncture wounds from another dog’s teeth often look smaller on the surface than the damage underneath, so even a wound that “doesn’t look bad” is worth a same-day vet check, particularly if your dog seems painful, is limping, or the skin was clearly broken.
Frequently asked questions
Do I need a tetanus shot after a dog bite?
Your doctor will ask when you last had one — if it’s been more than five years, a booster is typically recommended as part of standard dog bite care.
Will I definitely need antibiotics?
Not automatically, but doctors commonly prescribe preventive antibiotics for bites that break the skin, especially deep punctures, bites on the hands or feet, or for people who are immunocompromised — this is a medical decision made at the visit, not something to self-prescribe.
What if the dog that bit me is a family pet with all its vaccinations?
The wound care and infection-prevention steps are the same regardless of whose dog it is — a known, vaccinated dog substantially lowers rabies concern, but doesn’t remove the need for proper wound care and a medical evaluation for a bite that breaks the skin.
Should I try to find out about the dog’s vaccination status before going to the doctor?
Get that information if it’s quick and safe to do so, but don’t delay medical care to track it down — tell the doctor what you know (or don’t know) when you arrive, and they’ll guide the next steps from there.
