Licensed Ontario healthcare professionals
Every assessment is reviewed by a healthcare professional licensed in Ontario, trained in health conditions prescribing.
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Care365
Ontario Virtual Care
Acute Bacterial Rhinosinusitis Treatment Online — Ontario Virtual Care
See a licensed healthcare professional online for acute bacterial rhinosinusitis — no waiting room, no travel.
Acute bacterial rhinosinusitis is diagnosed not by how bad a cold feels on day one, but by its pattern over time: symptoms lasting 10 or more days without improving, or that improve and then suddenly get worse again ("double sickening"), or a severe onset with high fever, thick coloured nasal discharge, and facial pain persisting for 3 to 4 straight days from the start. It causes facial pressure or pain, thick nasal discharge, nasal blockage, and often a reduced sense of smell — different from allergies (sneezing, itchy watery eyes, clear discharge) which don't fit this pathway at all. Most cases still improve without antibiotics, which is why a high-dose nasal steroid trial is sometimes offered as an alternative before reaching for antibiotics.
Licensed Ontario healthcare professionals
Same-day review
Prescriptions sent directly
CCare365
Care365 workflowComplete assessment → clinical review → prescription sent when appropriate.
Quick Self-Check
Answer a few quick questions. This isn't a diagnosis — a real clinical assessment is the next step either way.
How We Work
A Care365 online clinical consult applies the actual clinical criteria — the 10-day rule, the double-sickening pattern, or severe onset — to determine whether your sinus symptoms are likely bacterial, and screens first for red-flag signs like eye swelling, vision changes, or severe headache that need urgent in-person care instead. When bacterial sinusitis fits, the healthcare professional can prescribe an appropriate antibiotic (or discuss the antibiotic-sparing high-dose nasal steroid option, reassessed at 72 hours, if you'd rather avoid antibiotics), taking penicillin allergy and pregnancy into account. If you've had four or more sinus infections this year or a known structural issue, the consult will point you toward specialist assessment instead.
Complete a short online assessment
Answer real, condition-specific questions — takes a few minutes, no appointment needed to start.
A licensed clinical reviews your answers
A real healthcare professional licensed in Ontario reviews your case, typically the same day — not an automated approval.
Get your treatment plan
When appropriate, your prescription is sent directly to your preferred pharmacy, with clear next steps.
Why Choose Care365?
Fast, Real Assessments
No generic templates — your answers are reviewed by a real person, typically the same day.
Secure & Private
Your information is encrypted and only seen by the clinical reviewing your case.
Prescriptions Sent Directly
When appropriate, your prescription goes straight to your preferred pharmacy — no extra trip needed.
What Our healthcare professionals Can Assess
Persistent pattern
Nasal symptoms that last 10 days or more without any improvement.
Double-sickening (worsening) pattern
Symptoms start to improve, then suddenly get worse again.
Severe onset pattern
A high fever with thick, coloured nasal discharge and facial pain for 3 to 4 straight days from the start.
Common Symptoms
- Thick, yellow or green nasal discharge
- Nasal congestion or blockage
- Facial pain or pressure, often worse on one side
- Reduced or lost sense of smell
- Headache
- Post-nasal drip
- Fever
Treatment Options
These options may be prescribed by a Care365 healthcare professional after a real assessment — this is general information, not a recommendation to use any specific medication without one.
| Medication | Class | Route | Typical Duration |
|---|---|---|---|
| Amoxicillin | Penicillin | PO | 5-7 days |
| Amoxicillin/clavulanate | Penicillin + beta-lactamase inhibitor | PO | 5-7 days |
| Doxycycline | Tetracycline | PO | 5-7 days |
| Azithromycin | Macrolide | PO | 3 days |
| Intranasal corticosteroid (high-dose) | Intranasal corticosteroid | Intranasal | Reassess at 72 hours |
Non-medication options
- Saline nasal irrigation — Large-volume (~250mL) may outperform small-volume syringe irrigation.
- Warm facial compresses
- Sleeping with head of bed elevated
Everything in One Place
- Easy online scheduling — submit your assessment in minutes
- Real clinical review, not an automated approval
- Prescriptions sent directly to your preferred pharmacy when appropriate
- 100% virtual — no travel, no waiting room
Frequently Asked Questions
How do I know if my sinus infection is bacterial or just a lingering cold?
The key signs are symptoms lasting 10+ days without improving, symptoms that improve and then suddenly worsen again, or a severe start with high fever, thick coloured discharge, and facial pain for 3 to 4 days straight — a cold that's simply dragging on without those patterns usually isn't bacterial.
Do I actually need antibiotics, or will it clear on its own?
Many cases still improve without antibiotics — a high-dose intranasal corticosteroid trial, reassessed after 72 hours, is offered as an antibiotic-sparing option for people who meet the criteria but would rather avoid antibiotics first.
I'm allergic to penicillin — what would I be given instead?
Doxycycline is the preferred alternative for a true penicillin allergy; azithromycin is generally reserved for pregnant or breastfeeding patients who can't take either option.
Can this be treated if I'm pregnant?
Yes, with adjustments — azithromycin is an option for pregnant or breastfeeding patients who need an antibiotic but can't take a penicillin-type medication.
What if I keep getting sinus infections?
Four or more diagnosed sinus infections in 12 months, or a known structural issue like nasal polyps or a badly deviated septum, falls outside this straightforward pathway and needs a specialist assessment for recurrent or chronic sinusitis.
Acute Bacterial Rhinosinusitis Can Be Treated
Complete a real assessment online — a licensed Ontario clinical reviews your case and arranges treatment and prescription support when appropriate.
Start My Free Assessment