sore wrists. who can help

Grace
My little one is 11 weeks old now but for about 4 weeks before I had her I started getting really sore wrists (what they call mummies thumb). I've been to a physio for about 3 weeks and didn't notice any improvements. I don't want to keep going and wasting my money. The pain can be really bad, and it's not only when I try to lift my baby. Has anyone else had this problem and if so who did you get to help you??