Maybe you can get another night in a hotel to recuperate and cool off, either as a breather or before you head back. That or park yourself in the bathtub for an hour!

Many meds make us heat sensitive, or unable to cool down, i know thats my problem, so i try not to get down on myself about it, or catastrophize. Its like, yeah, it WILL get worse if i dont take care of myself, but if i do, it wont.