As I tend to go from searing [dipped in a french fryer vat] to being put into a dry ice vault.
When hot? The spray evaporates and helps some... Maybe a fan indirectly blowing on them as well [not directly? THAT's TOO MUCH!] When cold? Damp towells warmed in a microwave but towell wrapped again to keep from burning...as you don't always know when it's too hot or cold.
Compresses are a good choice for bed, as the evaporation helps for the long term.
Just be careful. Simply because you DON't REALLY KNOW? Be super cautious. Certainly don't want to make things worse than they already are.
!! - j