What is Fish Border (LU10)?
Fish Border (魚際, LU10) is an important acupoint belonging to the Lung meridian (Hand Greater Yin Lung Meridian). Named after its resemblance to “the border of a fish’s fin,” it is located at the base of the thumb and is highly effective for improving various symptoms related to lung function. It is especially useful for managing respiratory conditions caused by modern stress and seasonal colds.
How to Find the Exact Location
Step 1: Open your hand with your thumb pointing upward. Step 2: Locate the first metacarpal bone of your thumb. You can find it by following the bone of the thumb on the back of your hand. Step 3: Find the midpoint of the first metacarpal bone, or the exact center of the bone. Step 4: It is located at the boundary where skin color changes from white to pink (the border between white and red flesh). It is in the hollow area where your finger and palm meet when your thumb is extended. Finding Tip: Using your opposite thumb to press and find the most tender point—that is Fish Border (LU10).
Acupressure Method
Basic Acupressure: Use the tip of your opposite thumb to apply pressure vertically with slight pain intensity. Press gently for 3–5 seconds and release. Repeat this 10 times and perform 3–5 times daily. Circular Massage Method: Using your thumb tip, massage in small circles. Perform 15–20 circles each in clockwise and counterclockwise directions. Severe Symptom Acupressure: When coughing is severe or the throat is swollen, increase the pressure and continue for 5–10 minutes continuously. Warm Acupressure: The effect is even better with warm hands. It is recommended to warm the area first with a warm towel before applying pressure.
Main Benefits
- Sore Throat Relief: Fish Border (LU10) is excellent at rapidly relieving throat pain and swelling. It is very effective for acute pharyngitis or chronic throat discomfort.
- Cough Suppression: It is effective for both dry cough and cough with phlegm, and relieves throat fatigue caused by coughing.
- Fever and Cold Symptom Relief: It improves low-grade fever and chills from colds and helps boost immune function.
- Thumb Pain Relief: It improves pain, numbness, and joint pain in the thumb.
- Improved Lung Function: It normalizes lung function and helps manage respiratory disorders such as difficulty breathing and asthma.
When is the Best Time to Apply Acupressure?
Optimal Time: Applying acupressure immediately when early cold symptoms appear can slow disease progression. It is especially effective for maintaining respiratory health when applied for 5 minutes after waking in the morning and before bed in the evening. Situation-Based Use: Apply acupressure immediately when it is difficult to swallow due to sore throat, when cough continues, when early cold symptoms appear, or when fever is present. Preventive Acupressure: Applying acupressure 3–4 times per week in advance during seasonal transitions or disease outbreaks helps prevent colds.
Precautions
Acupressure Intensity: Applying too much pressure can cause muscle damage, so maintain only a slightly painful level. Avoid the point if there are wounds on the skin. Contraindications: During pregnancy, it is best to reduce the pressure intensity or avoid it altogether. If there is a serious infection or high fever (39°C or higher), please seek medical consultation first. Complementary Therapy: You cannot expect complete recovery with Fish Border (LU10) acupressure alone; adequate hydration, rest, and maintaining a warm environment are also necessary. If symptoms persist for more than 3 days, please see a doctor. Individual Variation: The effect may vary depending on constitution and symptom severity.
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