Thanks for the query to H.C.M. Forum.
As she got blunt injury and taking pain killer , not much relief .
Because ,you mentioned that she is patient of joints pain disease, that's ,why ,she is not getting relief.
Since, how many days, she is having this disease?
May be due to ,Rheumatoid arthritis
If possible upload various reports about joints pain.
Consultation with an orthopaedician will help.