I am an lmt and am just getting into hot stone massage. my mother inlaw wants to know if she can get one but im not 100% sure. she doesnt have a public bone and doctors have told her she will eventually need a hip replacement. so I am not sure if its ok or not to give her one and don't want to hurt her. anyone know??? tried looking online and it doesn't say anything about hip problems with hot stones but wanna be sure. please and thank you