Laogong (劳宫): PC8 — The Palace of Toil, Palm's Fire Point for Heat, Calm, and Focus

What Is Laogong?

Laogong (劳宫, PC8) — the “Palace of Toil” — is the Ying-Spring (Fire) point of the Pericardium Meridian. Located in the very center of the palm, its poetic name reflects a deep insight: the hands are the instruments of human labor, and the palm center is where the heat of effort, stress, and mental strain concentrates and can be discharged.

In TCM theory, Laogong is one of the thirteen Ghost points (十三鬼穴) — points identified by the Tang dynasty physician Sun Simiao for treating severe mental and emotional disorders. While this historical classification sounds dramatic, it reflects Laogong’s powerful ability to calm the mind, clear pathological heat, and restore mental clarity.

As the Fire point on the Pericardium (the Heart’s protector) meridian, Laogong is the primary point for clearing Heart fire — the TCM pattern behind mouth ulcers, insomnia, anxiety, and mental agitation.

Location and How to Find It

Property	Details
Meridian	Pericardium (PC)
Point number	PC8
Location	Center of the palm, between 2nd and 3rd metacarpal bones
Depth	0.3–0.5 cun perpendicular
Classification	Ying-Spring point (Fire point); one of the Thirteen Ghost Points

Step-by-Step Self-Location

Method 1 — The Fist Method:

1. Make a loose fist with one hand
2. Note where the tip of your middle finger touches the palm
3. That contact point is Laogong
4. Press gently — a tender spot confirms the location

Method 2 — The Line Method:

1. Draw an imaginary line between the base of your index finger and the base of your ring finger
2. Find the midpoint of this line
3. Slightly toward the ring-finger side — that is Laogong

Tip: The point is often noticeably warm in people with Heart heat or anxiety.

TCM Functions and Actions

Primary Actions

1. Clears Heart fire and calms the spirit (清心火，安神) — the foremost action
2. Opens the orifices (开窍) — for loss of consciousness, stroke
3. Clears damp-heat (清湿热) — for mouth ulcers, bad breath
4. Stops sweating (止汗) — for palm sweating, night sweats

Why Laogong Is Special

The Pericardium in TCM is the Heart’s guardian — it takes the brunt of external pathogens and emotional stress that would otherwise attack the Heart directly. As the Fire point of this meridian, Laogong is the release valve for Heart fire — it allows excess heat and agitation to be discharged through the palms.

This is why people instinctively rub their palms together when stressed or anxious — they are unconsciously stimulating Laogong.

Clinical Applications

1. Mouth Ulcers and Canker Sores (口疮)

This is perhaps Laogong’s most practical everyday application:

• Recurrent mouth ulcers, especially on the tongue and inner lips
• Painful, red, inflamed oral sores
• The Heart opens to the tongue — Heart fire manifests as tongue and mouth inflammation
• Often combined with Shanzhong (CV17), Zhongchong (PC9)

2. Insomnia with Restless Mind (失眠心烦)

• Difficulty falling asleep due to racing thoughts
• Mental agitation, inability to “switch off”
• Feeling too hot, especially the palms and chest
• Often combined with Shenmen (HT7), Neiguan (PC6)

3. Anxiety and Agitation (心悸焦虑)

• Sense of internal heat and restlessness
• Hot, sweaty palms
• Pounding heart
• Feeling “wired” and unable to relax
• Often combined with Neiguan (PC6), Shenmen (HT7)

4. Excessive Palm Sweating (手汗)

Laogong is the classic point for sweaty palms:

• Palms that are constantly moist or dripping
• Worse with stress or nervousness
• In TCM, this is Heart fire pushing fluids out through the palm
• Often combined with Hegu (LI4), Neiguan (PC6)

5. Bad Breath from Stomach Heat (胃热口臭)

• The Pericardium meridian connects to the middle Jiao
• Heart fire can transmit to the Stomach, causing halitosis
• Often combined with Neiting (ST44), Hegu (LI4)

6. Heat Stroke and Loss of Consciousness (中暑昏迷)

• As a Ghost point and opening point, Laogong can help restore consciousness
• Used in first-aid for fainting, heat stroke
• Strong stimulation — pinch or press firmly

7. Hypertension with Heart Fire (高血压心火旺)

• High blood pressure with flushed face, red eyes, irritability
• Often combined with Taichong (LV3), Qu Chi (LI11)

The Palm-Heart Connection

TCM understands a direct energetic connection between the palms and the Heart:

        HEART (Emperor)
            │
    PERICARDIUM (Guardian)
         ╱    ╲
     PC6       PC8
   Neiguan    Laogong
  (Inner Pass) (Palm Center)

• Neiguan (PC6) — manages the pathway between Pericardium and the chest
• Laogong (PC8) — the terminal release point, where Heart fire exits through the palm

Together, these two points form the primary pair for Heart-related conditions.

Acupressure Self-Care

Basic Technique

Laogong is extremely easy to self-stimulate:

1. Use the thumb of one hand to press the palm center of the other
2. Apply firm, steady pressure
3. Use slow, circular motions
4. Breathe deeply
5. Hold for 1–3 minutes each hand

For Specific Conditions

Condition	Technique	Duration
Mouth ulcers	Firm circular pressure, morning and evening	2–3 min each hand
Anxiety / Racing mind	Gentle pressure + deep breathing	3–5 min each hand
Insomnia	Gentle pressure before sleep	2–3 min each hand
Sweaty palms	Firm pressure + deep breathing	2 min each hand
Heat stroke first aid	Strong pinch stimulation	Until recovery

Palm-Rubbing Technique (搓手)

A simple daily practice that naturally stimulates Laogong:

1. Rub your palms together vigorously for 30–60 seconds
2. Focus on generating warmth in the palm centers
3. You are automatically stimulating Laogong on both hands
4. Then cup warm palms over your closed eyes for 10 seconds
5. This clears Heart heat and refreshes the mind

This is why the instinctive gesture of rubbing hands together when cold, nervous, or stressed is therapeutic — it activates Laogong.

Key Takeaways

• Laogong (PC8) is the Fire point of the Pericardium — the premier Heart fire clearing point
• Located in the center of the palm — found by making a loose fist
• Most practical for mouth ulcers, insomnia, anxiety, and sweaty palms
• Named “Palace of Toil” — the heat release valve for mental and physical exertion
• One of the Thirteen Ghost points — powerful for calming severe mental agitation
• Palm-rubbing naturally activates this point — our instincts know what TCM explains
• Combine with Neiguan (PC6) for the complete Heart-calming treatment

Disclaimer: This article is for educational purposes only. Consult a licensed acupuncturist or healthcare professional for clinical treatment.

Related Articles

• Neiguan (PC6): Inner Pass Point
• Shenmen (HT7): Spirit Gate Point
• Hegu (LI4): The Universal Healing Point
• TCM Emotional Health Guide