hello, i can understand your concern. i would advise a complete blood picture to see the blood cell counts, especially the platelets. his blood pressure also needs to be checked along with other vital parametes. does your husband have rash over his body??? is the fever associated with cough or burning during urination. the most important things in viral pyrexia is supportive care. keep your husband properly hydrated with lots of fluids. continue giving tylenol, do cold sponging at regular intervals. antibiotics are usually not prescribed in viral infections ,unless a secondary infection is suspected. this has to be checked by a doctor. continue as advised and consult a doctor if improvement is not seen. usually it takes a week for viral pyrexia to subside. hope i have answered your concerns. feel free to ask further queries. thanks for choosing HCM