We first need to decipher if this is knee pain on the inside (big toe side) or outside (pinky toe side) of thee knee. Aside from that, some flags are raised such as burning and intense – which more indicates nerve involvement. If this is occurring more along the inner side of the knee, then you may have to explore the quality of the environment around the knee and thigh. If the burning sensation intensifies and covers a larger area, especially into the foot and toes, then it may be wise to see a pro.