LI19 Mouth Grain Crevice

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

LI19 (Kǒu Hé Liáo, “Mouth Grain Crevice”) is an acupuncture point on the Large Intestine Meridian. It is located superior to the lateral aspect of the upper lip, 0.5 cun lateral to the philtrum, at the level of the midpoint of the philtrum. It dispels wind, clears heat, opens nasal passages.

Location

Superior to the lateral aspect of the upper lip, 0.5 cun lateral to the philtrum, at the level of the midpoint of the philtrum.

Needling

Oblique insertion 0.2-0.3 cun. Do not needle deeply.

TCM functions

Dispels wind, clears heat, opens nasal passages.

Indications

Nasal obstruction, epistaxis, deviation of mouth and eye.

Clinical notes

LI-19 is a local point on the face, primarily indicated for conditions affecting the nose and mouth. It is highly effective in dispelling wind and clearing heat, making it useful for nasal obstruction, rhinitis, and epistaxis. Its proximity to the mouth also makes it beneficial for facial paralysis and deviation of the mouth. This point is often needled towards LI-20 (Yíng Xiāng) for enhanced effect on nasal issues.

On the Large Intestine channel

LI19 is one of 20 points on the Large Intestine Meridian. Nearby points:

Frequently asked questions

Where is LI19 located?

LI19 (Kǒu Hé Liáo) is located superior to the lateral aspect of the upper lip, 0.5 cun lateral to the philtrum, at the level of the midpoint of the philtrum.

What is LI19 used for?

LI19 dispels wind, clears heat, opens nasal passages. Common clinical indications include nasal obstruction, epistaxis, deviation of mouth and eye.

How is LI19 needled?

Oblique insertion 0.2-0.3 cun. Do not needle deeply.

Which meridian is LI19 on?

LI19 is a point on the Large Intestine Meridian (Shǒu Yángmíng Dàcháng Jīng).

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.