Stress causes the release of a hormone called cortisol. Giving rats daily injections of corticosterone (rat cortisol) for several weeks kills certain brain cells. Stressing the rats each day for the same amount of time has an identical effect.
As soon as possible after the burn or scald, ideally within 20 minutes, cool the area of the burn using cool or lukewarm water for 10 minutes to half an hour. Do not use ice, ice water, creams, greases or butter, which can cause further damage. Butter and oils actually retain heat rather than helping to remove it.
I helped scald a pig for a friend. Taught me two lessons. 1- drape a terry cloth towel on the pig and then pour on the hot water. It holds the hot water for better scalding and hair loosening. 2- skin the pig instead. Scalding and scraping is a lot of hard work. More than I'm interested into putting into it. So I skin all my pigs now.