Hi there...there are many different types of headache like migraine, cluster headache, tension headache. Each one has its own triggers, course and treatment. Migraine can be triggered by several things like bright light, emotional stress, smoking, dust. Try to avoid such triggering factors. Sometimes it can associated be nausea, vomiting, altered vision. When the attack occurs ask her to rest completely in a dark room. Ask her to her vision checked by ophthalmologist once. Also to consult a nearby Ent specialist for further evaluation and treatment.