In NJ, a nurse also needs an MD's order to dispense OTC's for headaches. I currently have 35 such orders. Of these 35 students, I only see 3 regularly (3-5X's/month) for meds. Some students come down to call home for a parent to come in with ASA, APAP, or NSAID'S. The rest of my 811 students get a glass of H2O, a snack if they haven't had breakfast, and are out of class a total of about 5 minutes. The only exception to this rule is if the student is in band, PE, choir, or woodshop. I will usually let them stay with me for the duration of these classes because of the volume of noise they would have to tolerate (which can be miserable if they really do have a headache). Plus, most students don't want to miss these classes. I currently have 3 students who have serious migraine headaches and have been worked up to rule out any other pathology. These students are given carte blanche to come down and get medication/rest. They are very conscientous about making up missed work!
With my computer charting program, I am easily able to see if a student is always down at the same time of day or month and am able to call home with that info. to see if there is something going on in school or medically (hormones, weather, etc.).