0.5–1 cun vertically or slightly obliquely in an inferior direction. Needle with the patient’s mouth open so as to avoid intra-articular insertion. After insertion, patients can close their mouth again.
Caution: this point is close to the superficial temporal artery and the auriculotemporal nerve.
There are three points anterior to the tragus of the ear, Tinghui GB-2 inferiorly, Ermen TB-21 superiorly and Tinggong SI-19 in the center. All three are frequently used to treat various ear problems, such as tinnitus, deafness, pain, itching and discharge in the ear. It is recommended to needle these three point alternately if frequent needling treatments are required.
Ermen TB-21 is an important local point for ear disorder, especially if the original cause is Liver Wind agitating Internally due to Liver Yang Rising.