Evidence supporting the use of: Iodine
For the health condition: Scratches and Abrasions

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Synopsis

Source of validity: Scientific
Rating (out of 5): 5

Iodine is widely recognized as an effective topical antiseptic for the treatment and prevention of infection in scratches, abrasions, and minor wounds. Its use is strongly supported by scientific evidence. Iodine works by releasing free iodine, which rapidly penetrates microbial cell walls and inactivates bacteria, viruses, fungi, and protozoa, making it highly effective at reducing the risk of wound infection. Various forms, such as tincture of iodine and povidone-iodine (Betadine), are commonly used in both medical and home settings. Clinical studies and systematic reviews have demonstrated that iodine-based solutions are effective in decreasing bacterial load on wounds and reducing infection rates without significantly impeding the healing process. Povidone-iodine, in particular, is favored due to its lower toxicity and irritation compared to older tinctures.

Historical use of iodine dates back to the 19th century and has remained prevalent due to its broad-spectrum antimicrobial properties and low incidence of resistance. Guidelines from organizations such as the World Health Organization and the Centers for Disease Control and Prevention recommend iodine for wound care, especially where infection risk is present. However, caution is advised in patients with iodine sensitivity or thyroid disorders. Overall, the use of iodine for scratches and abrasions is well-established, justified by both historical precedent and high-quality scientific evidence.

More about iodine
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