Why is sterile wound dressing used in minor burn treatment?

Burned skin can be tender and its normal protective barrier may be disrupted. A clean, non-adherent sterile dressing creates a physical cover over the area, shielding it from friction, dust and accidental contact. It may also absorb fluid from a blistered or weeping surface without pulling at the skin when it is changed. The dressing does not replace cooling a fresh burn with cool running water or clinical assessment when needed.

After cooling the burn, remove rings, watches or tight items near the area if this can be done easily. Cover it loosely with a sterile non-fluffy dressing or clean cling film laid over the skin; do not wrap tightly. Avoid ice, butter, toothpaste, adhesive dressings and popping blisters. Keep the cover clean and dry, and follow the instructions you were given about changing it. Pain relief may be appropriate for some people; a pharmacist or clinician can help you choose safely.

Seek urgent medical care for a burn that is deep, white, charred, numb, chemical or electrical, or involves the face, hands, feet, genitals or a major joint. Get advice for a large burn, a burn that circles a limb, or any concern involving a young child or a person with reduced sensation. Increasing redness beyond the burn, worsening pain, swelling, pus, fever or feeling unwell can indicate a problem and should be assessed.

Ask which dressing is suitable for the burn location, when it should be changed, whether the wound may be washed, and which changes in appearance should prompt a review. If tetanus vaccination is uncertain, ask whether it needs checking.