My mother got major accident...her leg bone is brocken,doctor replaced a steel rode to her leg she even has injury on her hand and it is fractured.she can't stand and walk untill that leg bone will not join...because of that she need to be on bed for 3 months.she feels burning effect on her thaies and butt area.she is not able to sit for more time and even sleep for more time.i believe this is a bed rashes or patches ,Please suggest me any good remedy or these.