4.5.3 Probable cold-stimulus headache

A 30-year-old ski instructor recalls three separate times over the season when a throbbing headache developed shortly after the resort medic pressed a bag of crushed ice directly against her forehead to settle swelling from small bumps. Each time the throbbing calmed down again within roughly nine minutes of the ice pack being lifted away and a warm compress applied instead. She reports no loss of consciousness at the time of any bump, no vomiting and no memory gaps around these events. She wears a helmet at all times while instructing and has never needed further care as a result.