In answer to the question I suppose there can be some long term damage related to the burns depending on his complexion and severity, but skin usually heals quickly and it takes a 2nd degree burn to do serious damage so it should heal okay and in a relatively short period of time - ever had a really bad sunburn? Kinda like that hugs. Oh and as many said there are many different kinds of creams - I used Glaxal base - totally awesome and non greasy - but I don't think you can buy it in the states. I am olive skinned and only tanned... So I had a tan from my nose down to my collar bone! no blistering or anything. Take care