Microvascular decompression is a minimally invasive surgical technique that involves the process of separating, displacing and properly fixing all blood vessels that are compressing, adhering and contacting the facial nerve, and the operation must be performed between the facial nerve and the blood vessels. This is a necessary condition for the recovery of facial nerve function. 2. The surgical operation will cause transient facial nerve edema, resulting in lower facial nerve function in the early postoperative period (mostly within 30 days), which may lead to facial nerve paralysis due to facial neuritis after the decrease of body resistance or cold. Therefore, patients should pay attention to the following aspects after microvascular decompression surgery 1. Pay attention to keeping warm and avoiding cold, especially in the season of changing weather, even in summer, avoid getting cold as much as possible, of course, the probability of neuritis after one month will be significantly reduced. 2. Avoid excessive alcohol consumption within one month after surgery, because the body’s resistance decreases significantly after drunkenness and facial neuritis can easily occur, leading to facial paralysis. 3. Avoid overexertion, pay attention to the combination of work and rest, and maintain a regular life to avoid facial neuritis.