Influenza · Antiviral eligibility · Clinical evaluation
Flu evaluation online — discuss antiviral treatment
Sudden fever, body aches, chills, headache, and a dry cough usually mean influenza. Antivirals work best within 48 hours of symptom onset, so timing matters. A licensed clinician reviews your symptoms, orders flu/COVID testing when it will change treatment, and sends oseltamivir (Tamiflu) or baloxavir (Xofluza) to your pharmacy when it's appropriate.
Board-certified clinicians · No membership required · Medicare, commercial insurance or $50 self-pay for the Ondoc visit
The 48-hour window matters
Antivirals generally work best when started within 48 hours. High-risk or worsening patients may benefit later as well; a clinician assesses timing, severity and treatment eligibility.
Flu, COVID, RSV, or strep
They overlap heavily. Your clinician sorts the pattern, orders combined flu/COVID/RSV PCR or rapid strep when the result would change treatment, and treats what you actually have.
Higher-risk patients prioritized
Pregnancy, asthma or COPD, diabetes, heart disease, immunosuppression, and age 65+ raise the stakes. Antivirals are recommended for these groups even past 48 hours.
What you get
- Clinical evaluation for flu symptoms; see current available times
- Tamiflu (oseltamivir) or Xofluza (baloxavir) considered when appropriate
- Flu / COVID / RSV testing ordered to a lab near you when useful
- Symptom-relief plan: fever control, cough, hydration, rest
- Clear red flags and a return-to-work or school note if you need one
Missing work or school? Get a doctor's note after an illness from a licensed clinician online.
FAQs
Can I get Tamiflu prescribed online?
A licensed clinician may prescribe oseltamivir when your symptoms, timing and health history support treatment. A prescription is not automatic, and dosing depends on factors including kidney function.
How soon do I need to start antiviral treatment?
Within 48 hours of the first symptom is the target — that's when Tamiflu shortens illness and reduces complications the most. Past 48 hours it's still recommended for high-risk patients and anyone getting sicker rather than better.
How do I tell the flu from a cold?
Flu hits suddenly with fever, body aches, chills, headache, and exhaustion. A cold builds gradually and stays mostly in the nose and throat — runny nose, sneezing, mild sore throat, rarely a real fever. See our flu vs. cold comparison for a side-by-side.
How long is the flu contagious?
Usually from about a day before symptoms start until 5–7 days after — longer in children and immunocompromised patients. A practical rule: stay home until you've been fever-free for 24 hours without fever reducers.
How long does the flu last?
Fever and aches typically break in 3–5 days; cough and fatigue can linger 1–2 weeks. Getting worse after initially improving is a warning sign for pneumonia or a bacterial sinus infection and should be re-evaluated.
Do I need a flu test?
Not always. If the clinical picture is clear and you're within the treatment window, testing rarely changes what we do. Testing helps when you're high-risk, when COVID treatment is on the table, or when the diagnosis is genuinely uncertain.
Are antibiotics useful for the flu?
No — influenza is viral. Antibiotics are only added if a bacterial complication develops, such as pneumonia, a sinus infection, or an ear infection.
When should I be seen in person or go to the ER?
Trouble breathing, chest pain or pressure, confusion, blue lips, severe dehydration, seizures, or symptoms that improve and then sharply worsen — those need in-person or emergency care, not telehealth.
Can you write a work or school note?
Yes. If the clinician determines you should stay home, they can issue a dated note through your Ondoc visit.