I'm still marking time with my bad knee. You know, the knee where they don't know exactly what is wrong. I've been playing doubles, doing clinics and basically hanging on until surgery in May. I've fallen into a predictable pattern, regardless of whether I do or don't play. I wake up in the morning with everything feeling wonderful. If I exercise in the morning, I will ice because that seems sensible. Throughout the day, the knee feels increasingly tight and stiff, especially on the lateral side. Advil helps some, but not enough to bother with it so I usually don't. Icing in the afternoon or evening doesn't do much either. I can do stretches and strength exercises, which seem to loosen things up, but it never lasts very long. I go to bed, and then everything feels good again the next morning. Rinse and repeat. So I am wondering if I should be using heat rather than icing. How do you know whether icing or heat is appropriate?