Who is this article for?

Readers interested in a practical, well-known acupoint for heat-related complaints, skin conditions, and self-care.

Can this article replace professional medical advice?

No. This content is educational only and should not replace diagnosis or treatment from a qualified healthcare professional.

Quchi (LI11 曲池): The Grand Clearing Point for Heat, Skin, and High Blood Pressure

Why Quchi Matters

Quchi (曲池, Qūchí) means “curved pool,” a name that captures both its location in the bend of the elbow and the way heat and pathogens are said to “pool” here for drainage. It sits on the Large Intestine (Yangming) meridian, an organ system that TCM classifies as rich in Qi and blood and prone to accumulating heat — which makes Quchi one of the busiest clearing points in the entire repertory.

Classically it is the He-sea point (合穴) of the Large Intestine channel, the place where the river of the meridian runs deepest. He-sea points are traditionally where pathogens “enter and exit,” and where the channel’s energy can be drawn upon most strongly — exactly what is needed when heat needs to be dispersed.

Location

Anatomical: On the outer end of the elbow crease, at the lateral (thumb-side) end of the transverse cubital crease, found by fully flexing the elbow.
Quick method: Bend the elbow to a right angle. The point lies at the outer corner of the crease, midway between the biceps tendon and the bony prominence of the outer elbow (lateral epicondyle). Press where a sore, sinking sensation appears.
Needle depth (clinical): 1–1.5 cun, perpendicular, with the elbow flexed.

For self-massage, flex the arm slightly and press firmly with the thumb of the opposite hand for one to three minutes on each side.

Key Functions

1. Clears Heat and Vent It Outward (清热解表)

As a Yangming point, Quchi is a first choice for driving heat out through the surface — fevers, the flushed heat of a cold or flu, sore throat, and the early redness and swelling of a local infection. It is routinely combined with points such as Dazhui (大椎 GV14) and Hegu (合谷 LI4) for a strong heat-clearing combination.

2. Dispels Wind and Stops Itching (祛风止痒)

This is Quchi’s signature role in dermatology. TCM reads most itchy, red, eruptive skin — hives (荨麻疹), eczema (湿疹), and acute rashes — as wind-heat or wind-damp-heat lodging in the skin. As a major point for dispersing wind and heat, Quchi appears in almost every formula of points for skin disease, very often paired with Xuehai (血海 SP10); the two together form one of the most famous dermatology pairings in practice, sometimes called the “wind-itch pair.”

3. Calms the Stomach and Lowers Rebellious Qi (和胃降逆)

Because it belongs to the Large Intestine channel (paired with the Stomach), Quchi helps regulate the Yangming organs — useful for nausea, vomiting, and the heavy, feverish lethargy of a Stomach-heat or Yangming-channel pattern.

4. Benefits the Joints and Meridians of the Arm (疏经活络)

Locally, Quchi treats elbow and arm pain, numbness, and weakness — tennis elbow, restricted elbow movement, and the paralysis or weakness that follows stroke. Its position makes it a natural choice for any disorder of the upper limb.

5. Supports Blood Pressure Management

In modern TCM practice, Quchi is one of the points most often selected for high blood pressure (hypertension) with a Liver-fire or Liver-yang-rising pattern — typically combined with Taichong (太冲 LR3) to calm Liver yang, and sometimes Fengchi (风池 GB20). It is offered as a complementary, adjunctive measure, not a replacement for antihypertensive medication.

Common Combinations

Goal	Typical pairing
Clear systemic heat	Quchi + Hegu (LI4) + Dazhui (GV14)
Wind-heat skin disease, itching	Quchi + Xuehai (SP10) + Sanyinjiao (SP6)
Calm Liver yang, blood pressure	Quchi + Taichong (LR3) + Fengchi (GB20)
Elbow/arm pain and stiffness	Quchi + local points + Shousanli (LI10)
Sore throat, fever	Quchi + Hegu (LI4) + Yuji (LU10)

Self-Care and Precautions

For itch or mild heat: gentle but firm pressure, 1–3 minutes per arm, once or twice daily.
For tension and blood pressure: slow, steady pressure paired with Taichong on the foot, often in the evening.
Avoid strong stimulation over an inflamed, broken, or infected elbow. As with any point used in pregnancy, or by people on blood thinners or with low blood pressure, seek guidance from a qualified practitioner first.

Key Takeaways

Quchi (LI11) is the He-sea point of the Large Intestine meridian, located at the outer end of the elbow crease.
It is one of TCM’s premier heat-clearing points — for fever, sore throat, and venting heat outward.
It is a cornerstone of dermatology, especially for wind-heat skin disease and itching, classically paired with Xuehai (SP10).
It treats local elbow/arm disorders and is widely used, in combination, for adjunctive blood-pressure support.
Self-massage is simple and safe with the usual precautions; deeper treatment belongs to a practitioner.