Cleaning and covering small wounds
Grazes and small cuts happen outdoors all the time. Properly cared for, they usually heal without problems; dirty or treated with home remedies, they can become infected. Here you learn the simple steps from a first-aid course: protect your hands, rinse with clean water, cover – and when a wound needs medical care, for example bites, deep cuts or a missing tetanus vaccination.
- 5 minutes
Explained simply
If you have grazed your knee or cut your finger, first rinse the wound with clean drinking water.
Then put a plaster or a clean dressing on it. Flour, oil, toothpaste or powder never go into a wound.
A doctor looks at deep wounds, animal bites or wounds with a lot of soil. The tetanus vaccination is also important.
How it works
Water simply washes away dirt and many germs. The more clean water, the better.
The cover keeps new dirt away while the body closes the wound. Tetanus bacteria from the soil can be dangerous – the vaccination protects against them.
What matters
Gloves when you help someone else.
Clean drinking water, no stream water.
Do not pull out stuck splinters or glass.
Safety: what to watch out for
Heavy bleeding: press firmly at once and call the emergency number – see severe bleeding.
Redness, warmth, pus or fever in the following days: medical help.
A first-aid course with the Red Cross or another aid organisation shows you all of this in practice. In an emergency: 112 (in Austria also 144).
Step by step
- 1
Protect yourself
If you are helping someone else, put on disposable gloves. If you are treating yourself, wash your hands first.
- 2
Rinse with clean water
Rinse the wound with plenty of clean drinking water until no more dirt can be seen. The water usually washes out loose grit.
- 3
Stop light bleeding
If it is still bleeding, press a sterile dressing gently onto the wound for a few minutes.
- 4
Cover
Cover the wound with a plaster or a sterile dressing without touching the wound surface with your fingers.
- 5
Check tetanus protection
If you are not sure when your last tetanus vaccination was, have it checked at a doctor's surgery soon.
- 6
Watch it
Change the cover when it is wet or dirty and look at the wound every day.
Common mistakes
- Putting home remedies in the wound
- Washing it out with dirty stream water
- Pulling out stuck splinters or glass
- Touching the wound surface with your fingers
- Forgetting tetanus protection
Quick view
Materials
Disposable gloves
When helping someone else
Consider latex allergies – prefer latex-free gloves (e.g. nitrile).
PET bottle (clear, max. 2 litres)
Clean drinking water
Do not heat or place in a fire.
Sterile dressings and bandages
Or a plaster
Open sterile packaging only immediately before use; observe the expiry date.
Suitable for
- Grazes
- Small, superficial cuts
- Small tears in the skin
Not suitable for
- Heavy bleeding – see severe bleeding
- Deep, gaping wounds
- Animal bites
- Objects stuck in the wound
Prerequisites
- The bleeding is light or has stopped
- Clean water
Safety
- This text does not replace a first-aid course. First aid is learned through hands-on practice under instruction. In an emergency always call professional help – via the local emergency number (112 in the EU) – and follow the dispatcher's instructions.
- Get medical care for deep or gaping wounds, wounds on the face, joints or hands, animal and human bites, heavily soiled wounds, and if tetanus protection is not definitely up to date.
- No home remedies such as flour, oil, butter, toothpaste or powder in the wound. Do not pull out embedded objects.
- If the wound becomes red, hot, swollen or pus-filled in the following days, or red streaks or fever appear: get medical help.
How it works
Germs from soil and skin end up in every open wound. Rinsing with plenty of clean water flushes out dirt and most germs mechanically. A clean cover keeps new dirt away. Tetanus bacteria live in the soil; only an up-to-date vaccination protects against them.
Advantages
- Simple, with little material
- Prevents infections
Disadvantages
- Does not replace medical care for deep wounds
Deep knowledge
Background
First-aid courses have taught the same thing for small wounds for years: rinse, cover, check tetanus protection. Home remedies and powders that used to be common are explicitly no longer recommended today.
Variants
- Without drinking water
- If you have no clean water, cover the wound cleanly and rinse it as soon as you have safe water. Dirty water brings more germs in.
Common mistakes
- Putting home remedies in the wound
- Washing it out with dirty stream water
- Pulling out stuck splinters or glass
- Touching the wound surface with your fingers
- Forgetting tetanus protection
Limits and risks
- Does not replace a first-aid course
- No recommendation of disinfectants or ointments
Material alternatives
Derived from material properties: a substitute must have all relevant properties. Observe the notes on the substitute.
- Sterile dressings and bandages
- Cotton cloth / T-shirt (Removes coarse particles only – no disinfection.), Mosquito net (Flammable – keep away from flames.), Fine cloth or muslin net against flies (Keep clean and dry; do not hang it over the flames.)
Results come exclusively from structured entries. No improvised instructions are generated.
Sources (3)
- European Resuscitation Council – Resuscitation (journal) (2025): European Resuscitation Council Guidelines 2025: First Aid · Rinse wounds with clean water
- International Federation of Red Cross and Red Crescent Societies (IFRC) – Global First Aid Reference Centre (2020): International First Aid, Resuscitation, and Education Guidelines 2020 · Small wounds and grazes: clean, cover, signs of infection
- Deutsches Rotes Kreuz (DRK): Erste Hilfe – Informationen und Kurse · Wound care by lay people