When I first had my trigeminal neuralgia, cold could bring on n attack. This summer I had another bout of it and just having the air conditioner vent the wrong direction in the car could drive me crazy. Whatever drug you are prescribed for it just know that your body has to get used to it and you may have some issues trying to work. I felt drunk for a couple of days or whenever he increased the dose. After you get used to it everything is wonderfuil