Used as a topical antiseptic to disinfect minor cuts, scrapes, and burns. Effective in killing bacteria, viruses, and fungi on the skin. Commonly applied before surgical procedures or injections to sterilize the skin surface. Also used in first aid to prevent infection in wounds. Not suitable for deep wounds or large areas due to risk of absorption and irritation. Often replaced by less irritating alternatives in routine use, but remains valuable in emergency and field medicine.