hello, my uncle has asked me to have a look online for him as he has just come back from brazil and got quite badly sunburnt, its not blistering, its peeling slightly on his chest but his legs are purple, he said they dont hurt, but ive had a look online and some people say not to worry and others say its sun poisoning, im not sure what to believe? he's going away to work in the usa tomorrow and its important to know if its serious incase it affects his work.