What symptoms indicate the use of the BiTong point?

The BiTong point, located on the body, is specifically indicated for addressing issues related to nasal congestion and rhinitis. When patients present with symptoms such as nasal obstruction, mucosal drainage, or sinusitis, stimulating the BiTong point can help alleviate these types of issues by promoting nasal patency and enhancing respiratory function.

Rhinitis and nasal congestion often involve disturbances in the flow of Qi and Blood in the channels related to the nose, and the BiTong point has a particular function in treating these conditions due to its anatomical and energetic connections. This point plays a crucial role in clearing phlegm and alleviating symptoms that affect the sinus cavities, thus making it the best choice among the options provided.

The other options, while representing conditions that require different therapeutic interventions, do not align with the specific function of the BiTong point. Symptoms such as eye and mouth deviation pertain more to neurological concerns, asthma and cough are respiratory issues requiring different treatment modalities, and lumbar pain with menstrual irregularities connects to musculoskeletal and gynecological conditions respectively. Thus, rhinitis and congestion are the clear indications for the use of the BiTong point.