Thank you for your question.
I am Dr. Su S. and I will try my best to help you.
I am sorry for her symptoms.
Temperature below 95 degrees is called hypothermia & is considered an emergency.
Motrin can be the factor.Next time, if it is needed, you can give Tylenol.
As her temperature is 96.6, you can wait and observe.Please keep room warm.
You can make the room heater on, cover with blanket.
Hot water bag wrapped in clothes can be kept under her bed. Give her warm drinks.
If the temperature goes further down, I would advise to take her to ER for evaluation and management.
If you have any query, please feel free to ask.
Wish her healthy life.