What Causes Hip And Thigh Itching, Bruising, Pain And Skin Burning Sensation?

Hi for the the past 6 months My left hip and thigh has been incredibly itchy and I develop bruises as a result of scratching. now it has got worse and I feel a pain in my hip. Also it feels like a burning sensation under my skin and its getting to be unbearable at night time. Also at night it causes a lot of pain