I have sin e read other articles by the doctor in question. Ice does reduce pain by reducing swelling he proports, but it slows the release of specific healing enzymes or somesuch and inhibits the flow of blood for healing. So it's a trade off, no pain, no gain. Personally if I get a bad burn I place it in a bucket of icy water for as long as I can. An hour even. It takes all the pain away and often prevents that big blister from forming so no one will ever convince me to avoid ice for that purpose. As for sprains etc I wouldn't bother now.