[Horner's syndrome following epidural analgesia for labour].

Horner's syndrome is a rare complication of epidural analgesia, likely due to the cephalad spread of anaesthetics. We report a 30-year-old woman who developed Horner's syndrome 25 minutes after receiving an epidural, showing unilateral arm weakness, ptosis, miosis, and conjunctival hyperaemia. The symptoms resolved in 2.5 hours with no post-partum neurological deficits. While persistent symptoms may require further investigation, unnecessary imaging and treatment can be avoided. This case emphasizes the importance of recognizing this rare complication to obstetric anaesthesia.