The auriculotemporal nerve originates from the posterior trunk of the mandibular nerve, a branch of the trigeminal nerve, and is a sensory nerve. It begins with two roots, holding the middle dural artery, and then forms a trunk that turns upward behind the mandibular joint, passes from the superior border of the parotid gland, and travels with the superficial temporal arteries and veins, distributing to the temporal skin, the mandibular joint, the skin of the external auditory canal, the tympanic membrane, and the skin in front of the ear. A small branch emanates from the parotid gland, which contains parasympathetic fibers from the petrous nerve of the linguopharyngeal nerve. The postganglionic fibers emanate from the auricular nerve after the neuron exchange, penetrating between the two heads of the external pterygoid muscle, and running anteriorly along the outside of the buccal muscle, distributing to the skin of the cheek and the buccal mucosa. Auriculotemporal neuralgia is due to damage to the auricular ganglion of the mandibular branch of the trigeminal nerve. The cause may be related to surgical trauma or postoperative scar adhesions in and around the parotid gland, as well as chronic inflammation or deformity of the mandibular joint. Typical symptoms are episodes of pain in one auriculotemporal region with flushing and excessive sweating, often associated with eating. The pain is episodic, mostly of a burning nature, and is mainly located in the anterior wall of the external auditory canal and its deeper parts, with the preauricular mandibular joint area and the temporal region often also involved, and in severe cases it may radiate to the mandible and even the neck on that side. In addition to the pain being triggered by eating, it can also occur at night when the air is hot and stuffy or when you are overly emotional. There is often significant pressure pain between the external auditory canal and the mandibular eminence. Occasional pressure on this area can also cause painful episodes, and procaine closure here often provides rapid pain relief.