What is the correct treatment method for first-degree or second-degree burns with closed blisters?

The appropriate treatment for first-degree or second-degree burns with closed blisters is to immerse the affected area in cold water. This method helps to cool the burn, reducing pain and preventing further damage to the skin. Cold water helps to constrict blood vessels, which can minimize swelling and inflammation in the burn area.

Cold water immersion is generally recommended over ice, as extreme cold can cause additional tissue damage. It is also preferable to applying ointments or covering the area heavily, as these actions could trap heat and moisture, potentially exacerbating the burn. Keeping the area clean and covered with a breathable dressing is beneficial, but it should not be a thick layer of bandages that might restrict airflow and could lead to infection or increased pressure on the burn.