3 day eeg

My daughter is 7 and was diagnosed with epilepsy about a year and 1/2 ago. I wanted to ask her neurologist if we could try a 3 day eeg test on her because they still dont know what sets off her seizures and since they are absent seizures we dont really know how many a day she actually has without her meds. Should we ask? How hard would it be on my daughter? Thoughts or suggestions appreciated