hello im asking on behalf of my husband who is 33 years of age. we have just been on holiday to egypt where my husband sustained very bad sun burn to 3 quarters of the back of his legs. we are on the 3rd day now and he is having swelling round the ankles and shins the discolouration is between a red and purple and is blotchy in places. please advise, where we live all doctors are on holiday for the week end.