I have blocked arteries in my legs and that causes me a bunch of pain also. The only thing that helps me is heat. A hetaing pad or a soak in the bath. It feels so good when i am having this pain. I don't know any thing about her age or her other health conditions. But he heat feels wonderful. Walking around sometimes helps too.Make sure to ask her doctor about this first, because it my dislodge a clot or something. If she can have the heat, nothing feels better.