Warning Signs Of Bell's Palsy

Difficulty Making Facial Expressions

The seventh cranial nerve is also responsible for facial expressions like smiling and winking, and when it's inflamed, or its myelin sheath is damaged, the patient will have difficulty making facial expressions. The cause is very similar to those of facial twitches. It's quite psychologically distressing when one cannot form normal facial expressions. Patients may also notice a difference in the amount of saliva or tears. The sense of taste may be affected because the cranial nerve also controls the facial nerve, the chorda tympani, that sends taste sensations from the tongue to the brain. The frontalis muscle, located in the forehead, controls the eyebrows. Bell's palsy patients are often not able to move the eyebrow on the affected side of the face. Some patients may experience pain in or behind the ear. Others may notice facial numbness.

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