What is lugols solution?

Lugol's solution is a solution of iodine and potassium iodide in water. It is named after the French physician J.G.A. Lugol, who first formulated it in the early 19th century. The solution is used as a disinfectant for wounds and as an antiseptic for surgical procedures. It is also used as a diagnostic tool in the testing of thyroid function. Lugol's solution has a characteristic reddish-brown color and a strong iodine smell. It is considered to be a toxic substance and should be used with caution. It is available in various strengths, with the most common being 2% or 5%.