KQ 3.1. In cases where the facial nerve has been inadvertently or deliberately transected, re-innervating the damaged nerve yields superior outcomes. The five peripheral branches of the facial nerve are not equally important for physiological function. The most important peripheral branch is the zygomatic branch, which plays a key role in eye closure and smiling movements. KQ 3.2. If the tumor cannot be separated from the facial nerve or if it necessitates splitting due to complete encasement, the decision to sacrifice the facial nerve depends on various considerations. Simultaneous re-innervation should be the first reconstructive option for inevitable facial nerve sacrifice. If securing a healthy segment of the proximal facial nerve is impossible, nerve transfer using alternative power sources, such as the masseteric nerve, should be considered. Single-stage temporalis muscle transfer is one of the preferred options for smile reanimation. KQ 3.3–3.5. Parotid gland surgery poses various complication risks. Immediately after surgery, patients may face some challenges, including seromas, sialoceles, salivary fistulas, and auricular skin paresthesia, as well as complications such as infection, bleeding, hematomas, and skin flap necrosis. Late complications may occur, including adverse scarring, Frey syndrome, and sunken-down skin deformities.