Welcome to HealthcareMagic forum.
Since the duration of febrile illness is only for 2-3 days, it would be hard to comment on the type of infection. If I were to be your treating physician I would suggest you to wait for another couple of days and monitor the progress of symptoms. During this time, you can take symptomatic treatment such as Tab Ibuprofen
400mg twice a day after food to take care of fever and myalgia along with saline gargles to reduce the throat irritation
. If nasal congestion
and sinus symptoms are present, steam inhalation can take care of those.
Viral infections which are self limiting are the most common cause found at any physicians office. So you can afford to wait.
If symptoms are persisting you can consider investigating. Routine blood test
- complete blood count
, ESR and throat swab would be needed.
Good rest and plenty of fluids will give you additional benefit in this circumstances.
Hope this answers your query and wish you a speedy recovery.