Yup, stay away from the butters and lotions for now. It will hold in the heat. Did you water down the vinegar? I had no stinging with the vinegar, and it really did help. Maybe do a 30/70 mix or something. You can do cold compresses, that will keep the heat down. Poor thing....hope he feels better soon. Sunburn sucks, and it sure teaches a painful lesson. I had a really bad burn in June, so I know how he feels!