Pressure And Pain In The Tailbone Region

Patient: I have pressure and pain in the tailbone region. It started 5 days ago but I did not fall on it or anything. It is slightly swollen, red, and feels warm to the touch. The pain, pressure, and swelling is present on both sides of my butt crack as well as in the middle, about 2-3 inches down from where the crack starts on top. What could this be and what should I do about it?

Doctor: