Stay hydrated and avoid foods that are known to exacerbate it. I've had several attacks, usually a few years apart but always a big toe, either side. The most memorable started the first day of a week long bike tour. The pain was just tolerable while pedaling but pressing down to clip in was more than I could take. I resorted to leaving my shoe clipped in and pulling my foot out of my shoe when I stopped. Was tricky. Took lots of Alleve that week.