usually any pain reliever will help. tylenol advil aspirin can help reduce her fever don't let her take it unless she's allergic though. there are two other things you could do. you can cool her down grab wet towels and put one on her forehead and the other on her neck and or chest. some people prefer to sweat it out but i don't recommend that one. i do recommend you take her to a doctor or er it's not good that her temperature is 102 if it gets any higher she could get brain damage.
my sister has 102 fever along with headache bodyache and vomitting feeling what immediate first aid can be given