Can 75% alcohol be used to remove iodine after applying iodine tincture?

It is generally acceptable to use 75% alcohol to remove iodine after applying iodine tincture.

Iodine tincture is a commonly used topical disinfectant, with iodides as its main ingredient. If deiodination is needed, alcohol can be used for cleaning. Iodine tincture is made from an ethanolic solution of potassium iodide and contains free iodine, which has strong oxidizing properties and can significantly irritate the skin and mucous membranes. Therefore, it should not be used on wounds, the face, lips, perineum, or other sensitive areas. After disinfection with iodine tincture, povidone-iodine should not be used; instead, 75% alcohol can be applied for deiodination, as iodine is soluble in ethanol.

When using 75% alcohol to remove iodine, ensure the alcohol concentration is above 70%, otherwise it may not effectively remove iodine. Before applying alcohol, first rinse the area thoroughly with water to remove any residual iodine tincture. When cleaning with alcohol, use a cotton ball or gauze pad soaked in alcohol and gently wipe the area—avoid excessive or vigorous rubbing, which could irritate or damage the skin.

In summary, alcohol with a concentration above 75% can effectively remove iodine, but safety and proper technique must be observed during application. If any discomfort or concerns arise, seek medical advice promptly.