What to Do in the First 30 Minutes After a Dog Bite

Clinically reviewed by Dr. Ponlawat Pitsuwan, Physician, Doctor Samui. Last reviewed: August 2026

You are on the path back from Na Muang waterfall, or cutting through a temple ground near Bophut, when a soi dog moves at you fast. A bite, a scratch, blood. It takes less than a second. Now what?

The next 30 minutes matter more than most people realise. Not because you need to panic, but because the right steps right now, before you reach a clinic, can genuinely reduce your risk. Here is exactly what to do.

The First 30 Seconds: Get Safe Before Anything Else

Back away slowly and calmly. Do not run. Running triggers a second attack. Put something between you and the dog if you can, a bag, a water bottle, any object. Once the dog loses interest, stop and assess.

Check whether you are bleeding heavily. If you are, apply direct pressure with whatever clean cloth you have. Bleeding control comes before wound washing.

Step by Step: What to Do Immediately After a Dog Bite

0 to 2 Minutes: Control the Bleeding

Press firmly on the wound with a clean cloth or piece of clothing. Hold for two full minutes. If blood soaks through, add more cloth on top and keep pressing. Do not lift the cloth to check, as this disrupts clot formation.

2 to 15 Minutes: Wash the Wound

Get to running water as fast as you can. Wash the bite with soap and running water for a full 10 to 15 minutes. This is not a rinse. Scrub gently around the wound edges. This step physically reduces the amount of virus or bacteria in the wound before it can travel deeper.

If you have a bottle of water and no tap nearby, pour it over the wound while working soap into it. Use all the water you have. This is the single most effective thing you can do before a doctor sees you.

15 to 20 Minutes: Apply a Simple Dressing

After washing, apply a thin layer of antibiotic cream if you have it, then cover with a clean bandage or cloth. Do not tape the wound shut tightly. Do not use lime juice, chilli paste, or any local remedy. These damage tissue and make wound assessment harder when you reach the clinic.

20 to 30 Minutes: Get Medical Help the Same Day

Call a clinic or arrange transport. Do not wait until tomorrow. Do not wait to see if it gets infected. In Thailand, the decision about whether you need rabies post-exposure prophylaxis needs to happen today. That means the vaccine, and sometimes an immunoglobulin injection given directly around the wound on the first visit.

If you cannot get to the Doctor Samui clinic in Chaweng, call for a hotel or villa visit. Doctors are available 24 hours a day, anywhere on the island.

Why Koh Samui Dog Bites Carry Extra Risk

Koh Samui has a large population of stray soi dogs. You see them at temple grounds, on beach paths, near the Na Muang waterfalls, and outside restaurants at night. Most are not aggressive. But a dog that feels cornered, startled, or protective of food or pups can bite without warning.

Thailand has confirmed rabies cases. The risk from any individual dog is low, but the consequence of getting it wrong is severe. Every bite from an unknown dog here is treated as a potential exposure. The dog cannot be tracked and observed for 10 days the way a domestic pet can. It is already gone.

Dog bites also push bacteria deep into tissue fast. Pasteurella, a common bacteria in dog mouths, can cause a serious infection within 24 to 48 hours. Puncture wounds are especially deceptive because the skin surface looks small while bacteria have already been driven deep below it.

The Rabies Question: Why the Timeline Matters

Rabies is almost always fatal once symptoms appear. The good news is that post-exposure treatment, started promptly, is highly effective. The time between a bite and when symptoms begin is usually weeks to months, which means you have time to act. But the vaccine series needs to start as soon as possible, not once you are back home.

The WHO classifies bites by severity. A Category II exposure is a minor bite that breaks the skin with no deep puncture. A Category III exposure is a deep puncture, multiple bites, or any wound on the face, hands, or neck. Category III bites require rabies immune globulin injected around the wound on the first visit, in addition to the vaccine. The doctor assessing your wound will work out which category applies to you.

The most important point: do not delay because the wound looks minor. Small bites carry the same rabies risk as large ones.

What a Doctor Will Do When You Arrive

At the Doctor Samui clinic, or when a doctor reaches your hotel, the first step is assessing the wound under proper light and irrigation. The doctor grades the exposure using the WHO classification, decides whether careful cleaning of damaged tissue is needed, and checks your tetanus status.

If the bite warrants it, the rabies vaccine series starts the same day and rabies immune globulin is arranged if required. Prophylactic antibiotics are prescribed in most cases, particularly for puncture wounds, hand bites, and bites in children. You leave with a clear follow-up schedule for the remaining vaccine doses and written documentation for your travel insurance.

The modern rabies vaccine is given in the arm, not the stomach. It is well tolerated. There is no reason to delay.

What Not to Do After a Dog Bite

Beach wisdom gets this one wrong regularly, and it can make things worse. Do not suture or tape the wound shut before a doctor has seen it. Closing a bite wound traps bacteria inside.

Do not pour undiluted hydrogen peroxide directly into the wound. Do not apply iodine neat into the wound. Both damage tissue and slow healing. Soap and running water does more good than either.

Do not use lime juice, chilli, or any other remedy passed around as local advice. It does not help and makes the wound harder to assess when you reach the clinic.

Do not wait for symptoms. An infected bite can progress within hours. Rabies exposure cannot be assessed by how you feel after the fact. By the time symptoms appear, it is too late for treatment.

A Note for Parents: If Your Child Is Bitten

Children are lower to the ground and closer to dogs at eye level, which makes them more likely to be bitten on the face or hands. These are the most serious locations and always need urgent assessment the same day.

Keep your child calm first. Wash the wound yourself using the same soap and water approach, cover it gently, and call a doctor. Children need weight-adjusted dosing if rabies immune globulin is required. Many families find a hotel visit far less distressing than a clinic trip with a frightened child, and the Doctor Samui team sees children regularly in exactly this way.

Reassure your child that the injections are not the old-style painful series. The modern vaccine is straightforward. Starting it the same day is what matters.

Getting Help on Koh Samui

If you are in Chaweng, Bophut, Lamai, or anywhere on the ring road, the walk-in clinic is open and you can arrive without an appointment. If you are at a villa in Maenam, a resort in Choeng Mon, or a hotel in Bang Rak, call and a doctor will come to you. The whole island is covered, day and night.

Dog bites fall under emergency medical treatment in almost all standard travel insurance policies. Keep every receipt and ask for a medical letter at your visit, this is provided as a routine part of the consultation. Do not delay rabies post-exposure care while waiting for insurer approval. Start treatment, then sort the paperwork.

More detail on the vaccine schedule and what to expect from each visit is on the rabies vaccine page for Koh Samui.