Rule out high blood pressure
or any other kidney problem
do hot fomentation keep a pillow under the legs at night &/when resting.
Any way take
ibuprofen 200mg od & sos x 5days
do knee exercises
it may have to be further investigated
make sure you are not allergic to any of the medicines you are going to take.
You will need other supportive medicines also.
Do ask for detailed treatment plan. Don? t ignore. It could be beginning of a serious problem.