I assume your physician has you on some sort of antibiotic coverage?

Keep it clean and dry. Rest. Avoid excessive activity and sweating. Eat adequate protein. Wear clean, lightweight, loose-fitting shirts. If you develop an elevated temperature, if the red, swollen and tender area around the wound begins to expand or develop red streaks leading away from it, or if you develop swollen lymph glands, particularly in your armpit on the affected side, seek a re-check without delay. Of course, follow all of your doctor's instructions to the letter.

Let us know how you are doing with it. Good luck and Merry Christmas.

Jeff