My son-in-law has been having nocturnal fever for 10 days now...no fever during the day. Tonight it is 101.8, last night 102.7. He is fatigued with some night sweats but doesn t feel bad during the day or have a fever. Any suggestions as the ER found nothing wrong after CBC, CMP, Mono, Flu, urinalysis, chest x-ray all essentially normal.
Hello it's me Chat Doctor.  It could be viral fever, give proper oral fluid, and tab paracetamol symptomatic, follow up after 3 days