Thanks for consulting
Few things to make clear
- What type of sport she played. Is any previous injury to start with paining
- If MRI is normal but she is having feeling of giving up while walking definitly some ligament injury
- Go for Arthroscopy
( can be diagnostis and treating). because some times MRI misses something.
Till then Use Long Knee brace
while walking ans sitting.
Use NSAID ( Tab Etodolac
400mg BD and Tab Phlogem 1 TDS( Trypsin, Rutoside, Bromellin)