Not only can the sun prolong PIE appearance, it can lead to premature aging including sun spots, fine lines, and wrinkles. UV damage is DNA damage. Sunscreen is an anti-aging must for all ages young and old--preventing future skin cancer. It is the fountain of youth in a bottle. Prevention is better than treatment. There is no such thing as safe tanning, as tanning is the result of sun damage.
Acne medications work by reducing oil production, speeding up skin cell turnover, fighting bacterial infection or reducing inflammation — which helps prevent scarring. With most prescription acne drugs, you may not see results for four to eight weeks, and your skin may get worse before it gets better. It can take many months or years for your acne to clear up completely.