In some people, there's also dryness of the affected eye or mouth because the facial nerve innervates the lacrimal, submandibular, and sublingual glands.
Peripheral nerves that originate from the brain are called cranial nerves, and they're in charge of motor and sensory innervation of the head and neck.
Occasionally, it can cause some problems with swallowing, which are usually temporary because the recurrent vagal nerve supplies the larynx, the vocal cord.
Since the trigeminal and sacral nuclei serve just one side of the face or body, herpes vesicles and ulcers develop on the ipsilateral or same side as the affected nuclei.