A 32‐year‐old pregnant woman presented with cluster headache (CH) during the third trimester of a normal pregnancy. Pure oxygen mask inhalation was ineffective, and intranasal lidocaine applications were realized associated with oral methylprednisolone, given at 1 mg per kg once daily. These treatments rendered the pain tolerable and the pregnancy went to its term with no consequence on the baby. This case of CH attack during pregnancy raises the issues of the influence of sexual hormonal changes in women with CH and the way to treat this disease in such circumstance. To date, there are no therapeutic guidelines available; this case suggests some possibilities.

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