Most common type of melanoma on face is lentigo maligna or melanoma in situ. However, there have been several reports of metastasis even in the case of melanoma in situ on the face so adequate margins should be taken to ensure the highest cure rate. Your surgeon along with your dermatologist may recommend lymph node biopsies as well depending on the depth of invasion of melanoma. Cosmetically, flap almost always looks better than a graft, however, in the case of melanoma in situ or melanoma, graft may be preferable in case there is a positve margin as it would be much easier to go back and perform re-excision versus a flap where there can be significant amount of tissue movement. I am certain the procedure is performed in close coordination with a board-certified dermatologist who can perform Woods Lamp examination to better delineate margins of melanoma on the face. Topical imiquimod may be advisable to increase cure rate, better appreciate residual precancerous burden on the rest of the skin based on the amount of subsequent inflammation from imiquimod and possibly improve the appearance of surgical scar. Best wish.