Suggest Treatment For Knee Pain And Tennis Elbow

I had a ligament tear on my right knee more than 02 weeks back and my Ortho Doc prescribed me Kineto DP which I consumed for 05 days. Just when I finished this medication I started getting pain on my right hand elbow and when the Doc was consulted said it was a tennis elbow and prescribed me Rabot DC and Lorcam 8 for 10 days. After all this medication I still dont feel better with my right hand and I get still get slight pain on my knees. Today when I showed myself to the Doc he asked me to take rest and prescribed Tapal ER 50 for 05 days and Tendocare for 10 days and then see him.
I want to know whether these medicines are safe without major side effects and also what can be done for the tennis elbow and knee pain physically?? Thank you.