What can i do for chronic knee pains?

Several things: Anti-inflammatories, ice, a elastic knee sleeve type brace, stretching of the quads and hamstrings, and strengthening of the quads and hamstrings without deep knee flexion exercises. But first get evaluated and find the specific reason for your chronic knee pain to get the correct treatement.

Many options: Depending on the severity of the condition, treatment options may include rest, ice, compression and elevation, bracing, injection, pain medication, anti-inflammatory medication, physical therapy, and possible arthroscopic or open surgery including possible joint replacement.