Sciatica - Damp-Heat Bi Pattern

Dr. Li Wei, DACM

Sciatica · Damp-Heat Bi Pattern

Updated: June 23, 2026

Reviewed by: Dr. Li Wei, DACM

Reading Time: 7 min

Body Area: Leg

Pattern Overview

Damp-Heat Bi is an inflammatory pattern in sciatica, characterized by burning pain, redness, swelling, and aggravation with heat. The core pathogenesis is accumulation of Damp-Heat in the leg meridians, causing inflammatory radiculopathy, nerve root edema, and severe burning pain.

Key Symptoms and Differentiation Points

| Differentiation Dimension | Manifestations |

| :— | :— |

| Primary Symptoms | Burning pain in the leg, redness, swelling, worse with heat |

| Associated Symptoms | Local warmth, tenderness, limited leg movement, fever, thirst |

| Tongue and Pulse | Red tongue with yellow greasy coating, slippery and rapid pulse |

| Pathogenesis | Damp-Heat accumulating in the leg meridians |

| Etiology | Inflammatory radiculopathy, infection, immune-mediated inflammation |

Acupuncture Point Prescription

| Point | Location | Function |

| :— | :— | :— |

| BL23 Shenshu | Lower back, 1.5 cun lateral to L2 | Regulates Kidney Qi, clears Heat and drains Dampness |

| SP9 Yinlingquan | Below the medial condyle of the tibia | Transforms Dampness and drains Heat |

| BL40 Weizhong | Midpoint of the popliteal crease (behind the knee) | Relaxes sinews and activates collaterals |

| GB30 Huantiao | Midpoint between sacral hiatus and greater trochanter of femur | Master point for sciatica; on the Gallbladder meridian |

Clinical Recommendation: Filiform needle, reducing method; may combine with pricking and cupping at BL40 to drain Damp-Heat.

Herbal Formula

Base Formula: Si Miao Wan (四妙丸)

Composition:

Atractylodes (Cang Zhu), Phellodendron (Huang Bai), Achyranthes (Niu Xi), Coix Seed (Yi Yi Ren)

Action: Clears Damp-Heat, reduces inflammation, promotes diuresis, and relieves pain.

Modifications

| Associated Symptoms | Additions/Subtractions |

| :— | :— |

| Severe burning pain | Add Jin Yin Hua, Lian Qiao to clear Heat and detoxify |

| Redness and swelling | Add Pu Gong Ying, Zi Hua Di Ding to detoxify and reduce swelling |

| Fever and thirst | Add Shi Gao, Zhi Mu to clear Heat and generate fluids |

Western Mechanism Reference

Inflammatory radiculopathy with elevated inflammatory cytokines, nerve root edema, and immune dysregulation. Damp-Heat Bi corresponds to sciatica with a significant inflammatory component, often seen in infectious or immune-mediated radiculopathy.

References

  1. Textbook Standard.

  2. WHO. (2023). Musculoskeletal pain. World Health Organization.

Explore More

  • Find your solution at MendGod.com – Personalized herbal protocols and acupressure tools for sciatica relief.

  • Deepen your knowledge at TcmCIO.com – Full research papers and clinical case studies on TCM nerve health.