If a dog bites you, your first move is to get away from the animal, then immediately clean the wound with soap and running water for at least five minutes. What you do in the next few hours matters: proper wound care reduces infection risk significantly, and certain bites need professional medical attention the same day. Here’s how to handle it from the moment it happens.
Clean the Wound Right Away
Once you’re safely away from the dog, wash the bite under running tap water with a gentle hand soap for five minutes or longer. The goal is to flush out bacteria, and tap water works just as well as sterile saline for this purpose. Press the wound gently to encourage a small amount of bleeding, which helps push bacteria out.
One important detail: don’t pour hydrogen peroxide, rubbing alcohol, or other antiseptics directly into the wound. These are toxic to your own tissue and can actually interfere with healing. Soap and water on the skin around and over the wound is all you need for initial cleaning. After washing, pat the area dry with a clean cloth and apply a thin layer of antibiotic ointment if you have it, then cover with a clean bandage.
If the wound is bleeding heavily, skip the washing step and apply firm pressure with a clean cloth or bandage first. Hold steady pressure for several minutes until the bleeding slows, then clean around the wound as best you can.
Assess How Serious the Bite Is
Not all dog bites are equal. A bite that leaves a red mark or shallow scrape on the surface is very different from one that punctures deep into the tissue. Understanding the difference helps you decide whether you can manage this at home or need to head to a clinic.
Shallow bites that barely break the skin, causing only minor nicks less than a tenth of an inch deep, are the least risky. You may see slight bleeding and some bruising, but these typically heal well with basic wound care at home.
Puncture wounds are more concerning. If you can see one to four distinct puncture holes, especially if any of them are deep, you’re dealing with a bite that drove bacteria well below the skin surface where cleaning can’t easily reach. These carry a higher infection risk and generally need medical evaluation. Bites where the dog held on, shook its head, or left deep bruising are more severe still, because the tissue damage extends beyond what’s visible on the surface.
Any bite to the hands, feet, or face warrants a trip to a medical provider regardless of how it looks. These areas are especially prone to infection and complications. The same goes for bites that tear the skin in a jagged pattern, crush the tissue, or won’t stop bleeding.
Know the Signs of Infection
Dog mouths harbor several types of bacteria that can cause fast-moving infections. One of the most common, Pasteurella, can produce noticeable symptoms within 12 to 24 hours of a bite. Watch the wound closely over the first few days for these warning signs:
- Increasing redness that spreads outward from the wound
- Warmth and swelling around the bite area
- Throbbing pain that gets worse instead of better
- Pus or cloudy discharge draining from the wound
- Red streaks extending away from the bite (a sign the infection is spreading through your lymph system)
- Fever
If any of these appear, get medical care promptly. Bite wound infections can escalate quickly, and antibiotics work best when started early. For high-risk bites (hands, feet, face, deep punctures, or bites in people with weakened immune systems), doctors often prescribe a short course of preventive antibiotics lasting three to five days, rather than waiting for infection to develop.
Get Medical Care for Deep or High-Risk Bites
You should see a medical provider the same day if the bite left deep puncture wounds, tore the skin significantly, involves your hand or face, or if you’re not sure how serious it is. People with diabetes, those on immune-suppressing medications, or anyone with liver disease face higher infection risks and should have even minor bites evaluated.
At the clinic, the provider will irrigate the wound more thoroughly using a syringe to flush bacteria out under pressure. What happens next depends on the wound’s location and severity. Facial bites are typically cleaned, debrided (dead or damaged tissue removed), and sutured closed, even for complex lacerations. This approach produces good cosmetic results without increasing infection rates. Bites on the hands, puncture wounds, and any bite that looks infected are usually left open to heal on their own after cleaning. Closing a high-risk wound traps bacteria inside and makes infection more likely.
Tetanus and Rabies: Two Vaccines to Consider
If you haven’t had a tetanus booster in the past five years and the bite is deep or dirty, you need one within 48 hours of the injury. If you’re up to date on tetanus, you can skip this.
Rabies is the bigger concern, though the risk depends entirely on the dog’s vaccination status. If the dog is a pet with current rabies vaccinations, the risk is extremely low. If you can identify the owner, get proof of the dog’s rabies vaccination. Health authorities will typically place the dog under a 10-day observation period. If the dog remains healthy for those 10 days, it was not shedding rabies virus at the time of the bite, and you don’t need rabies treatment.
If the dog is a stray, can’t be found, or was behaving strangely, talk to your doctor and local health department about starting rabies post-exposure treatment. Early signs of rabies in animals include unusual aggression, excessive drooling, difficulty swallowing, stumbling or weakness, lethargy, and self-mutilation. Rabies is nearly always fatal once symptoms appear in humans, so this is one situation where acting on uncertainty is the right call.
Document Everything and Report the Bite
While the details are fresh, write down or photograph the following: the wound itself (before and after cleaning), where and when the bite happened, a description of the dog, and the owner’s name and contact information if you can get it. Ask the owner for the dog’s rabies vaccination records.
Most jurisdictions require dog bites that break the skin to be reported. Medical facilities are generally obligated to report bites to the local health department, but you can and should report it yourself as well, especially if you didn’t seek medical care. Contact your local animal control or health department. They will typically initiate a quarantine of the dog for 10 days and verify its vaccination status. This protects you and also creates a record if the dog has a pattern of biting.
In many areas, rabies vaccination is required by law for all dogs over three months old. If the dog that bit you was unvaccinated, the owner may face legal consequences, and the quarantine conditions will be stricter. Your documentation becomes important if you need to file an insurance claim or pursue compensation for medical bills, so keep records of all medical visits, prescriptions, and time missed from work.