Swift puncture with a needle, lancet or three-edged needle and let bleed. It is often used together with Jinjin EX-HN-12.
Caution: It is contraindicated for patients with bleeding disorders or taking anticoagulant medication.
Jinjin EX-HN-12 and Yuye EX-HN-13 are mostly combined, despite that they are not used often due to their location on the frenulum.
Their main function is to clear Heat and reduce swelling of the tongue, in sudden, severe and recalcitrant cases.
They can also be applied to treat severe morning sickness.