Usually, yes. Sinus infections are diagnosed almost entirely from your symptoms and history - facial pressure, congestion, drainage, how long it has lasted - which is exactly what telehealth carries well. No swab or scan is needed for a typical case.
Why online works: the diagnostic question is usually viral versus bacterial, and that is answered by the timeline - most sinus infections are viral and clear on their own in 7 to 10 days; antibiotics are only warranted when symptoms last beyond 10 days, are severe (fever above 102F with 3-4 days of facial pain), or 'double-worsen' (start improving, then crash). A clinician can assess all of this by message or video and prescribe to your pharmacy when antibiotics are genuinely indicated - beware services that hand them out on day 3. Get seen in person instead if there is swelling or redness around an eye, vision changes, severe headache with stiff neck, confusion, or a high persistent fever - those are today-not-telehealth signs. Emergencies skip this list: chest pain, trouble breathing, stroke signs, severe bleeding, or thoughts of self-harm mean call 911, or 988 for a mental health crisis in the US.
What to do
Common questions
How can a doctor diagnose a sinus infection without examining me?
Because the exam adds little for a typical case - there is no swab or quick test for sinusitis. Diagnosis comes from the pattern: congestion, facial pressure or pain that worsens bending forward, thick drainage, reduced smell, and how the symptoms have moved over days. That pattern is communicated as well by text or video as in an exam room, which is why sinus infections are among telehealth's most-handled conditions.
Do I need antibiotics for a sinus infection?
Probably not - and getting them when you do not need them causes real harm (resistance, side effects, C. diff risk). Most sinus infections are viral and resolve in 7 to 10 days with symptom care: saline rinses, decongestants, pain relievers. Guidelines reserve antibiotics for symptoms lasting beyond 10 days, severe presentations with high fever, or the double-worsening pattern. A good clinician - online or off - will say watchful waiting when that is the right answer.
What can I do at home while it runs its course?
Saline nasal rinse (the single most useful one), a decongestant like pseudoephedrine for a few days, acetaminophen or ibuprofen for the pressure pain, fluids, and a humidifier. Nasal steroid sprays help if allergies feed your congestion. Decongestant nasal sprays like oxymetazoline: three days maximum, or they cause rebound congestion that feels exactly like the infection getting worse.
When is a sinus infection actually urgent?
Rarely, but know the signs: swelling or redness around an eye or the eye bulging, double vision or vision changes, a severe headache with a stiff neck, confusion, or symptoms that keep escalating despite treatment. Those suggest the infection has spread beyond the sinuses, and that is an emergency room, not a telehealth visit. Emergencies skip this list: chest pain, trouble breathing, stroke signs, severe bleeding, or thoughts of self-harm mean call 911, or 988 for a mental health crisis in the US.