Judy is a 32 year old investment banker and was seen recently by your colleague who diagnosed migraine. She returns three weeks later and reports that despite trying to avoid migraine triggers and taking oral Sumatriptan and Paracetamol, she has had a further two migraines. She has had to take six days off work and is keen to avoid further episodes in the near future as she cannot afford to take any further time off. She has always found work stressful and is anxious about her deadlines.

What is the most suitable treatment option?