If you have significant horizontal forehead wrinkles, they may be there because you are contracting your forehead muscles to keep your eyebrows elevated as eyebrows tend to droop with age. For forehead injections small unit quantities, and injecting the eyebrow depressors to elevate the inner and outer eyebrows are important. This allows a balancing out of the central drooping with medial and lateral elevation. In patients that rely on their forehead muscles to keep the eyebrows elevated it may be advisable to not inject the forehead.
There are a couple of possible reasons to delay repair: 1. The surgeon sent the final specimen to a pathologist for permanent sections to confirm the negative margin, 2. The surgeons wants to repair the Mohs defect with a delayed skin graft. Waiting for 10-14 days before graft placement improves the wound bed to enhance the chance for graft take and allows for some filling in of the wound bed to improve the final contour.
