LOCATION
With the elbow is flexed, the point is in the midpoint between the lateral end of the transverse cubical crease and the lateral epicondyle of the humerus.
Features
He /sea point. Main point for antianaphylaxis and antipyresis.
Body Inches (cun)
Each person has his/her own personal body inches.
One cun is equal to the width of the Knuckle of the thumb.
Nerves, vascular
The dorsal cutaneous nerve of the forearm, the inner deep layer is radial nerve, and there is radial reflex, and the branches of the vein pass.
Indication
This point is used to clear heat ( Yangming Meridian ) and is one of the major point to clear heat and fire.
Main point for diseases of the head, face and the five sense organs, such as swollen and sore throat, toothache, redness and pain in the eyes, often used with Hegu.
Local problems: Help for the flow of qi and blood in upper arm. So, used for elbow pain, stiffness; especially for tenis elbow.
Febrile disease;
Rubella, eczema, carbuncle, wind rash, dry heat, itching skin.
Hypertension
Paralysis of the arm,pain and weakness in the elbow;
Psychosis;
Abdominal pain, diarrhea.
Classical Treatment from Acupoints
Cold ， fever，faucitis，tonsillitis，eye rednesss：LI 11 & LI 04 & TE 05.
Erysipelas，urticaria：LI 11 & LI 04 & SP 10 & BL 40 & BL 17.
Thromboangitis obliterans：LI 11 & PC 06 & LI 04 & SP 10 & GB 34 & ST 36 & LR 03 & BL 60 & KI 03 & Ashi point.
Drug allergy by CHLORPROMAZINE HYDROCHLORIDE TABLETS：LI 11 & LI 04 & SP 10 & SP 06.
Cold：LI 11 & GB 20 & TE 05.
Fever：LI 11 & ST 36 & KI 07.
Persistent fever：LI 11 & PC 05 & SI 03.
Illness on head/face：LI 11 & LI 04.
Hematemesis：LI 11 & HT 07 & LU 10.
Hypertension ， gastroenteritis：LI 11 &ST 36.
Hemiplegia：LI 11 & GB 34.
Ache all over both hands：LI 11 & LI 04 & LI 15.
Urticaria ， cutaneous of pruritus：LI 11 & GV 14 & SP 10.
Wrist cramps：LI 11 & SI 04.
穴位
肘橫紋外側端；屈肘時當尺澤與肱骨外上髁連線的中點。
特點
合穴、土穴。
同身寸
針灸取穴比量法。出自《千金要方》。是指以患者本人體表的某些部位折定分寸，作为量取穴位的長度單位。
穴區神經血管
前臂背側皮神經，內側深層為橈神經本幹（約在皮下1.3～3.3厘米），並有橈側返動、靜脈的分支通過。
適應症
傷寒餘熱不退，目赤痛，齒痛，喉痹，手臂腫痛，肘中痛難屈伸，半身不遂，月經不通，瘰癧，癮疹，癭氣，胸中煩滿，瘛瘲，癲疾，頭痛，頸腫，腕急。
發熱，流行性感冒，肺炎，中風偏癱，扁桃體炎，肱骨外上髁炎，肘臂神經痛，肩胛神經痛，高血壓，蕁麻疹。
穴位配伍療法
感冒發熱，咽喉炎，扁桃體炎，目赤：1.曲池 2.合谷 3.外關
丹毒，蕁麻疹：1.曲池 2.合谷 3.血海 4.委中 5.膈俞
血栓閉塞性脈管炎：1.曲池 2.內關 3.合谷 4.血海 5.陽陵泉 6.足三里 7.太衝 8.崑崙 9.太谿 10.阿是穴
冬眠靈藥物反應：1.曲池 2.合谷 2.血海 3.三陰交
外感風寒：1.曲池 2.風池 3.外關
大熱：1.曲池 2.三里 3.復溜
餘熱不盡：1.曲池 2.間使 3.後溪
頭面病：1.曲池 2.合谷
嘔血：1.曲池 2.神門 3.魚際
高血壓或胃腸疾病：1.曲池2.足三里
半身不遂：1.曲池 2.陽陵泉
兩手酸痛難執物：1.曲池 2.合谷 3.肩髃
蕁麻疹或皮膚搔痒：1.曲池 2.大椎 3.血海
腕急：1.曲池 2.腕骨