Low grade fever for a day in general is nothing to be worried of, but in current situation, depending on the place you stay and having a kid at home, just be cautious. If the fever persists, or having high grade fever or any of the respiratory symptoms you need to get evaluated.
Next Steps
Maintain hygiene, hand washing techniques, use of regular face mask, avoiding hand contact with face, physical distancing, healthy diet and good sleep.
Health Tips
Maintain temperature chart, consult if the fever character changes or any other respiratory complaints.