86 is really warm for a bully. You can wet her down while she is outside. Do you have AC on in the house? If not fans all over to try and create a breeze. She should only be outside to potty and right back in. I just started letti g my boys lounge on the deck and our temps are now ranging around the low 70's. If she continues to pant inside take a cool wash cloth and put it in het arm pits and groin and give her ice cubes to munch on.