“Hydrogen peroxide is a good wound antiseptic”

For generations, many people have reached for hydrogen peroxide to clean cuts and scrapes, believing its vigorous fizzing meant it was effectively sterilizing the wound. This common practice dates back to the early 1900s, when hydrogen peroxide began to gain popularity as a medical treatment and disinfectant. The visible bubbling action, caused by the release of oxygen when it contacts enzymes in our tissues, was often perceived as a powerful sign that the solution was actively killing germs and cleaning the injury.

However, modern medical understanding has busted this long-held belief. While hydrogen peroxide does kill bacteria, it is not selective and unfortunately damages healthy tissue cells, including fibroblasts, which are crucial for the healing process. This indiscriminate destruction of healthy cells can actually delay wound closure and increase the risk of scarring, hindering the body's natural ability to repair itself. The very "cleaning" action believed to be beneficial can set back healing.

The misconception persists largely due to tradition and the visually convincing bubbling effect, which makes people feel like the product is actively working. Many were taught to use it by parents and have continued the practice without realizing that medical advice has evolved. For effective and safe wound cleaning, healthcare professionals now recommend gentler alternatives like clean running water or sterile saline solution. These options effectively remove debris and bacteria without causing harm to the delicate healing tissues.