LI4 (Hegu) vs LR3 (Taichong): Which Pressure Point Is Right for You?

What’s the difference between Union Valley and Great Rushing?

Union Valley and Great Rushing are both acupoints frequently compared because they’re effective for headaches and stress. However, their location, meridian pathway, and the speed and nature of their effects are completely different. Union Valley is a quick, direct acupoint on the Yangming Large Intestine Meridian of the hand, while Great Rushing is a deep and comprehensive acupoint on the Jueyin Liver Meridian of the foot. Understanding the differences between these two acupoints allows you to make the optimal choice for any situation.

Understanding Union Valley (LI4) in depth

Precise location

Union Valley is located at the center of the web between the thumb and index finger—the indented area where they meet. It’s at the midpoint of the index finger metacarpal bone on the back of the hand, at the highest point between the thumb and index finger on the dorsal surface. When you spread your hand open and separate your thumb and index finger, you’ll clearly see a slight indentation between them—this is the precise location. When pressing from your fingertips toward your wrist, the spot with tenderness (pain upon pressure) in the slightly indented area over the bone is the correct point.

Recommended for these conditions

It’s most effective for urgent headaches, especially migraine or tension headaches when you need immediate relief. Toothache and facial pain (facial neuralgia, temporomandibular joint pain) are also key indications for Union Valley. It helps with early cold symptoms, high fever, and sore throat from upper respiratory infections. Shoulder stiffness, neck tension, and eye fatigue caused by stress are relieved quickly. It’s also good for menstrual cramps, acute abdominal pain, and nervous indigestion. Union Valley can be considered an “emergency acupoint” when rapid response is needed in urgent situations.

Acupressure technique and tips

Press and release the Union Valley area firmly using your opposite thumb, repeating the motion. Apply pressure strong enough to turn the skin white for effectiveness. Press hard for 3-5 seconds and release as one set, doing 5-10 sets at a time. Perform acupressure 3-4 times daily, or every 2-3 hours if symptoms are severe. When pressing with your thumb, tilt your finger slightly upward (toward the wrist) for more precise stimulation. For headaches, it’s effective to alternate stimulating Union Valley on both hands. The effect is better if you soak your hands in hot water before acupressure.

Understanding Great Rushing (LR3) in depth

Precise location

Great Rushing is located on the dorsal surface of the foot, in the indented area between the big toe and second toe. On the top of the foot, it’s in the depression just in front of the joint where the first metatarsal bone and second metatarsal bone meet. As you follow the space between the toes upward toward the ankle, the first deep hollow you encounter is Great Rushing. The location is relatively clear and easy to find, but to pinpoint the exact location, move your big toe and second toe to identify the bone position.

Recommended for these conditions

Great Rushing is more effective when you want to fundamentally improve chronic stress, anxiety, and heightened emotional sensitivity. It’s especially beneficial for people with poor anger management who tend to get angry easily, or those with significant mood swings. It’s effective for high blood pressure or blood pressure fluctuations, especially rises caused by stress. It helps when suffering from dizziness, vertigo, or tinnitus (ringing in the ears). While eye fatigue, neck pain, and headaches can also occur, Great Rushing addresses these by promoting smooth qi flow in the upper body. It’s useful for insomnia, shallow sleep, or frequent waking. It also helps relieve premenstrual syndrome (PMS) and menopausal symptoms.

Acupressure technique and tips

Apply pressure slowly using your thumb or index finger. Unlike Union Valley, moderate sustained pressure works better than strong pressure. Press firmly for 3-5 seconds and release, repeating this 10 or more times. Perform acupressure once or twice daily, preferably in the evening. Sitting in seiza (traditional floor sitting position) or in a comfortable position with one foot’s Great Rushing pressed by your thumb while resting the other foot on the opposite knee makes acupressure easier. Massaging the Great Rushing area with circular motions increases effectiveness. Warm stimulation with moxa or thermal patches is also effective, but consistency is most important.

Key comparison summary

Combining them creates synergy

Using Union Valley and Great Rushing together creates harmonious balance between upper and lower meridians for greater effectiveness. When you have an acute headache while experiencing high stress, first stimulate Union Valley strongly to provide immediate pain relief, then apply moderate sustained pressure to Great Rushing to address the root cause of stress. This can prevent headache recurrence. The same applies when you have a headache with high blood pressure—you get a dual benefit of controlling the headache with Union Valley while regulating blood pressure with Great Rushing. When you have emotional instability causing headaches or sudden dizziness, alternating stimulation of both acupoints stabilizes your nervous system and hormones more quickly. However, avoid strongly stimulating both acupoints at the same time; instead, apply pressure to Union Valley first for about 5 minutes, then wait about 10 minutes before stimulating Great Rushing. It’s also effective to stimulate Great Rushing first in the evening to calm your mood, then use Union Valley in the morning if needed.

Conclusion: Situation-based selection guide

Choose Union Valley: when you’re currently suffering from headache or toothache, have cold symptoms, experience facial pain or stiffness, have acute shoulder pain from stress, or have nervous stomach pain. Because its effect is fast and direct, it’s optimal for emergencies. Choose Great Rushing: when you’re under continuous stress recently, have poor anger management, have high or unstable blood pressure, experience recurring dizziness, have poor sleep quality, or want to stabilize mood swings. It’s more effective when you want fundamental improvement rather than immediate relief. Use both: If you have both acute symptoms and chronic stress, set priorities according to your situation, but combining both acupoints is wisest. If the urgency is high, choose Union Valley first; if the root cause is clear, choose Great Rushing first. In the long term, consistently managing both acupoints by alternating between them can take care of both your physical and mental health.