What is the correct needle insertion technique for KI-23 (shen feng)?

The appropriate needle insertion technique for KI-23 (Shen Feng) is to insert obliquely at a depth of 0.3-0.5 cun. This technique is suitable for this specific acupuncture point, which is located near the lateral aspect of the chest in the fifth intercostal space, where care must be taken not to puncture the thoracic cavity. The oblique insertion allows for a more comfortable approach while still ensuring that the needle effectively stimulates the point to promote the desired therapeutic effects associated with Ki-23, such as resolving phlegm and supporting kidney function.

Using this technique minimizes the risk of injuries and is in line with safe acupuncture practices. This specific depth also avoids any potential complications that may arise from deeper perpendicularly directed insertions, while still allowing the practitioner to achieve the intended therapeutic outcomes.