Suggest Treatment For Low Grade Fever In A Child

My 2 year old continues to get a low grade fever each morning, which is gone by lunch. (~100.3) even though it is low, she obviously feels bad. Dr checked her out and ruled out the obvious things (flu, strep, etc) but it has been over a week of the same pattern. Might her body be under too much stress during the night? Should we keep it warmer at night? I m assuming it is something simple...? (Side note: she has uncontrolled epilepsy and does have seizures all night. However, nothing has changed in the past year, and this fever has never happened )before)