Only if you know for sure.?

Please only answer if you know the right answer. My brother who is an MD and my family are going on Vacation To Florida tommorrow. We are from Ky. If by chance I decide to p a kidney stone while on the trip ( I have 5 ready to p) would he be able to write me a script for pain relieve in Fl. Or is the dea license only good in Ky?