The baby seems fine during the day but suddenly develops a fever of over 39 degrees at night. After taking fever-reducing medication and suspension, the fever subsides, but the body temperature rises again to 38.7 degrees after the effect wears off. The hospital examination confirms a viral infection, with no specific medicine available, but three types of medication have been prescribed for treatment. I would like to inquire whether it is still safe to use fever-reducing medication in this situation and if it can be taken with other medications.