I woke up last Monday morning with real bad M/S so I called the doctor and the nurse called in a prescription of Zofran. My question is, are you supposed to continuously take it ever 8 hours or only when you have morning sickness? I've noticed that if I take it around the time that I am due to take it again I start feeling sick again. I figured I would ask you guys because you guys are either dealing with this now or maybe have in the past. Thanks!