Hi!
This is a lentigene/sun spot. It is on the most sun exposed area of your face so it is caused by sun damage. The sun damage is from years ago but applying sunblock correctly and on a daily basis will help to prevent other pigmentation from appearing.
Sun spots are generally more difficult to remove than freckles because of a higher risk of PIH. We usually combine a vascular laser (IPL or Excel V) with picosure to remove then sun spot and correct the underlying damage due to UV rays. You may need 1-3 sessions depending on the severity.
Keep using the sunblock and double up over the lentigene!!!!
Best regards
Dr Yanni
