Charlin's syndrome is a rare neuralgia along the external nasal nerve.


(1) Sensory nerves to the nose arise from the ophthalmic and maxillary divisions of the trigeminal nerve CN V.

(2) The nasociliary nerve is a branch of the ophthalmic division, which gives rise to the anterior ethmoidal nerve. This gives rise to the external and external nasal nerves.



(1) trauma

(2) rhinoplasty or other surgery

(3) idiopathic


Clinical features:

(1) atypical facial pain, which primarily involves the external nose. Pain be continuous or episodic. It may range from mild to severe. There may be a trigger point on the nose.

(2) variable ocular and retro-orbital pain

(3) variable headache, often involving the forehead

(4) variable unilateral rhinorrhea

(5) variable conjunctival injection

(6) negative work-up for other causes of facial pain (sinusitis, other)



(1) local anesthesia to external nasal nerve

(2) sphenopalatine ganglion block

(3) radiofrequency ablation

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