If patients with facial palsy do not pay attention to rest during treatment or their physical condition decreases, the condition may recur after the condition improves. After healing, most of them will not recur, but if they do not pay attention to prevention, a few of them may have the second or even 3~5 times of recurrence because the affected facial nerve has been damaged and the immune function is relatively low when it is less able to resist cold and virus, so it is easier to recur. Of course, facial palsy on the other side (healthy side) may also occur. Patients may even have facial palsy for 3~4 times at most, and the severity may vary each time. In severe cases, sequelae will be left behind, such as distorted mouth, cheek puffing and leakage, closed eyes, eyes with tears, facial muscle spasm, pain behind the ear, head and face. How to prevent the recurrence of facial paralysis? When riding a motorcycle or bicycle, pay attention to wearing a mask or hat to protect the face. 2. Don’t open the windows when driving or riding in a car to avoid the wind blowing directly on the face. 3. 6. Be careful not to be too cold or too hot when using air conditioners; 7. If head, face or behind-the-ear pain persists and does not abate, you should go to the hospital promptly to control the condition early.