Hello I Lifted A Heavy Box Recently And My Right

Hello I lifted a heavy box recently and my right wrist made a crack noise went to a and e with it they said it's a sprain and it's been 5 weeks now and it's still sore. I have already been back to a and e and there saying I need physio now but I haven't heard back from anyone yet. Any advice? It's mega sore very stiff in the morning and before bed. Thanks