# XU18 Yatongling (Toothache Zero) – Extra Points: Upper limbs

牙痛零 · yá tòng líng

Location: On the palmar aspect of the hand, between the third and fourth metacarpophalangeal joints..

Cautions: No specific contraindications.

Canonical page: https://acuiq.com/points/xu18

## Indications

An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

Heat Fire, Heat Fire, Toothache, Toothache, Swelling, Wind

---

AcuiQ-authored prose (symptom and meridian descriptions, the wiki, the auricular crosswalk) is licensed CC-BY-4.0: https://creativecommons.org/licenses/by/4.0/. The assembled protocol compilation is not: build on it with attribution, but do not redistribute it whole as a dataset – https://acuiq.com/terms. The underlying findings are the cited sources' claims – each entry carries its citation; verify against the source before relying on it. Not medical advice: https://acuiq.com/terms