Several years ago, I used to wear an item called Body Cooler, and it lasted 15 days. I wore it when I was somewhere dry and always daytime, and also so hot even though it wasn't as hot as the Abyss of Hell. I wore it at that time and searched the place.
However, the item had quite a severe side effect, and it lasted for 5 minutes. The side effect was that it would go insane if hit by fire, no matter how small or large it was. The meaning of the word "crazy" is related to these things: aggressive, angry, stressed, losing control, always wanting to appear offensive... and others like that.
I have felt it? Ha ha ha. Of course… I have. But luckily, since I'm taking the Samurai class, I can do something about it before the side effects get worse. Yeah, I used the «Meikyo Shisui» skill to calm myself down. And after that too, the side effect disappeared and didn't display the burning throat image above my HP bar.