I don’t think anyone here can tell you. I know in the hospital, stitches are usually left on for about 10 days. My father , however, was a dentist and said something about oral injuries often healing faster than injuries to other parts of the body. It will all depend on what the person doing the biopsies says after the biopsies are taken. Until then, no one knows how deep or involved those lumps are.
Try to shift your focus. A large part of Christmas is about sharing with family and people we love. Enjoy and cherish the time with those close to you. The food can be replaced or replicated at a later time, not the people.