Suggest Remedy For Torn Meniscus

I tore my meniscus playing basketball. Don t recall a specific time where I injured it, but during practice I felt pain when I was walking after a few drills. And the next morning, the pain was worse. But after therapy that pain has subsided. However, there is a pothole in my knee, doctor s say it s an old injury but that is exactly what is bothering me now. It hurts to walk up the stairs. I need to be back playing in a couple weeks. Will this pain subside because it is old and it is acting up? In how long? Or will I need separate treatment?