Do not use tissue or toilet paper, as it is not absorbent enough. You risk getting iodine stains on your fingers or hands when you try to remove it from your skin.
You can get rubbing alcohol at your local drugstore or online.
Apply the rubbing alcohol as needed to your skin to remove the iodine stains.
When you first apply the iodine to a cut or scrape, it may sting slightly as the medicine is absorbed into the wound. The stinging sensation should go away after a minute or two.
Iodine is not recommended for the treatment of serious burns, animal bites, or deep puncture wounds. See your doctor for proper treatment if you have any of these issues.