As well as Hughes and fibro I have symptoms of lupus and Sjogrens so my skin is very sensitive and burns within minutes. I was using a sunscreen recommended by Prof Hughes (needless to say can't remember what it was called) but the higher protection was like a thick cream which took ages to put on. Then my chemist recommended Sun Sense ultra - factor 50 but a thin cream which can be put on in seconds and the bottle lasts for ages (in this country anyway!!!), and I am not allergic to it. Even better it is available on prescription.