@heisenberg34 one of the things about Blue Emu is I has never gotten hot and even with three pain killers iin it and after a few minets I don't even feel it. I take two tyneol with it and feel great all night. Most creans and ointments I found were to hot and I stopped using them because of it. An old farmer and a friend told me about it He had arthursis very badly used it every evening and you would't even know he suffered at all. But he also believed like me don't think about it all the time and there's times where you forget it for a Bit. I have never had an aerobic reaction to it.