How should Lugol's solution be administered to prevent staining of the teeth?

To prevent staining of the teeth when administering Lugol's solution, using a straw is the best choice. This method allows the solution to bypass the teeth, reducing contact and the potential for staining that can occur due to the iodine content in the solution.

Lugol's solution is known for its dark color, which can easily stain dental enamel if it comes into direct contact with the teeth. By utilizing a straw, the solution is directed towards the throat without the risk of it touching the teeth, thus helping to maintain dental aesthetics.

Other methods, like mixing with water or taking it with milk, do not effectively prevent staining, as they still involve the solution coming into contact with the teeth, even if the staining is somewhat diluted. Administering it as a tablet is not viable since Lugol's solution is a liquid and does not come in tablet form. Therefore, using a straw is the most effective way to protect the teeth while ensuring that the medication is administered safely.