To prepare for your skin check appointment, make sure your skin is clean and free of any makeup, nail polish, or artificial tanning products. Avoid scheduling your exam immediately after a workout, as sweat can interfere with the examination. It’s helpful to have your hair washed and out of the way, and to wear simple clothing that is easy to remove for full access to your skin. Additionally, bring a list of any spots you’re concerned about to point out to the doctor.