Yes. Hello Dr. Rynne. Mhy name is Janet, and I am a 56 year old woman in good health, but took a nasty spill this evening on a sidewalk as my toe caught on a crack in the sidewalk. I landed on both knees, and somewhat on my hands, too. Left knee seems to have taken the brunt of the fall. it is abit skinned and red, and the pain is primarily to the top side of the knee cap. Going down steps is very painful. I am never sure on these type of things if one should use hot or cold.