A business executive injured his leg skiing one weekend. By the time he got home, the leg was very swollen and he was having difficulty walking, so he called his doctor at home.
The doctor told him to soak the leg in hot water. The man tried it, but the leg became more swollen and more painful. His maid saw him limping and said, "I'm only a maid, but I always thought it was better to use cold water for swelling." So, the executive tried cold water, and the swelling rapidly subsided.
On Monday morning he called his doctor. "Say, what kind of a doctor are you anyway? You told me to soak my leg in hot water and it got worse. My maid told me to use cold water and it got better."
"Really?" answered the doctor. "I don't understand it. My maid said hot water."