Which ear point is used to treat pain in the internal organs and functional diseases of the autonomic nervous system?

The sympathetic nerve point on the ear is specifically designated for treating pain in the internal organs and addressing functional diseases of the autonomic nervous system. In the context of auricular acupuncture, this point is crucial as it has direct connections to the autonomic nervous system, which regulates involuntary bodily functions, including those related to internal organs.

Stimulating this point is thought to help modulate the sympathetic response, potentially alleviating symptoms related to organ pain and dysfunction. This makes it particularly relevant for conditions that involve autonomic imbalances or responses, such as digestive issues or stress-related disorders affecting the organ systems.

While the endocrine point is more focused on hormonal balance, the subcortex is associated with deeper brain functions and emotional regulation, and the occiput relates to cranial responses, none of these points directly address pain in internal organs or the specific functionality of the autonomic nervous system in the way that the sympathetic nerve point does. Thus, the sympathetic nerve point stands out as the most appropriate choice.