Some science behind the scenes
The front of the ear is a trigger point. There are also minor trigger points behind the ear. This is best seen by looking at the course of the nerves which the energy flows parallel. In the diagram below you can see that there is a cluster of nerves ending just in front of the ear.
Energy from the ear follows the course of the trigeminal nerve which you can see in the diagram to the left.
The mandibular nerve (V3) carries sensory information from the lower lip, the lower teeth and gums, the chin and jaw (except the angle of the jaw), parts of the external ear, and parts of the meninges.
But here is also an understanding in TCM that the ear itself maps to the body and that various positions on the ear correspond to various body parts. This is shown below.
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