After my heart transplant, I was told by a Phoenix Mayo dermatologist that I had 45-260% more chance of getting skin cancer than other folks. That certainly made me consider everything I was doing. I have become a "hat" woman and rarely wear sleeveless shirts unless I'm outside very early in the morning. I check the UV index during the day if I plan to be out of the house and dress appropriately. I also use a facial foundation/moisturizer that contains a 40 SPF. Neutrogena makes a sheer sunscreen 55 SPF that is very lightweight and not smeary on the skin. You can pick it up at Costco. I think most brand name sunscreens are safe to use. I remember my mother smattering us with zinc oxide during summer because we spent the entire time outside for three months while growing up. You can always use that. I live in Tucson and exercise in my pool usually after 4 or 5 pm. I do use a rash guard shirt. I think it has that name to protect against any abrasion that could cause a rash, including sun rash. I am so grateful to have this time to live life and I promised my surgeon I would take care of this new heart.