it's summer so the sun is shinning and sunscreen is needed! any will work.
i am telling you from experience as i spent a fair amount of time on the beach today and i did get fairly burnt in one or two places.
yes i'm being a hypocrite...
however it means i can also offer an insight into good aftersuns, I find nivea moisturizing after sun lotion with aloe vera works wonders.
weather it actually does any good for your sunburn, who knows. but the aloe will be good for your skin even if it does nothing to your burn.
sticking the bottle in the fridge also makes it very soothing.
you can find out more about nivea on their website.
have fun in the sun!