Day Six of Sinus Symptoms and a Request for Antibiotics
A 41-year-old woman presents to an urgent care clinic on day 6 of nasal congestion, thick yellow-green discharge, and mild bilateral facial pressure. She is afebrile at 37.6°C, has no severe pain, and reports her symptoms have been stable - neither improving nor worsening - since day 3. She asks for "the strong antibiotic" she received two years ago. She has a documented Clostridioides difficile infection eight months ago after a course of clindamycin, and no other comorbidities. Examination shows injected nasal mucosa with purulent discharge, no sinus percussion tenderness, and no dental pain. The clinic's antibiotic prescribing rate for upper respiratory infections is tracked on a dashboard and runs 30% above the network average.
1. Do you prescribe an antibiotic? Justify the decision and give the treatment plan, including what you will actually say to her.
Read the worked answer
The question is not whether she wants an antibiotic - it is whether she has bacterial rhinosinusitis. She does not meet criteria.
Reasoning:
- Symptoms <10 days and not worsening → viral pattern is most likely.
- No "double sickening" (initial improvement followed by worsening).
- No severe features (fever ≥39°C, severe facial pain, or high fever with purulent discharge for several days).
- Purulent discharge does not discriminate - neutrophils and sloughed cells color nasal mucus in viral illness too.
Plan - the visit is not "no treatment":
- Saline irrigation and an intranasal corticosteroid; acetaminophen or an NSAID for pain; hydration and humidification; avoid oral decongestants beyond 3 days.
Script: "This has the shape of a viral infection, and antibiotics won't shorten it - they'd mainly add diarrhea and yeast infections to your week, which matters given your C. difficile last year. What I will do is treat the symptoms, and set a clear rule: if you're not clearly better by day 10, or you get better and then suddenly worse, call me and I'll treat you. That's a plan, not a shrug."
2. She returns on day 12 with worsening unilateral facial pain and fever of 38.6°C. What is your management now, and how does her C. difficile history change it?
Read the worked answer
Now bacterial rhinosinusitis is clinically plausible - more than 10 days without improvement, or worsening after initial improvement, is exactly the pattern that changes the decision.
Treatment:
- First line: amoxicillin-clavulanate 875/125 mg twice daily for 5–7 days. Longer courses add adverse effects, not benefit.
- Doxycycline 100 mg twice daily is a reasonable alternative in penicillin allergy (nonpregnant).
How the C. difficile history changes things:
- Any antibiotic carries CDI risk, but amoxicillin-clavulanate is far lower risk than clindamycin or fluoroquinolones, which should be avoided here - quinolones independently raise CDI risk and add tendon, aortic, and dysglycemia harms.
- Keep the course short, and advise her to present promptly for diarrhea.
- If diarrhea develops, stop the inciting antibiotic and test for C. difficile rather than treating empirically.
Red flags that override stewardship and mandate imaging/ENT referral: periorbital edema or orbital symptoms, vision change, severe unilateral pain, forehead swelling (Pott's puffy tumor), meningismus, or immunocompromise. Those are not outpatient antibiotic conversations.
3. You are asked to lead a clinic quality initiative on this prescribing rate. What interventions would actually move the number, and how would you measure success?
Read the worked answer
Lectures do not change prescribing rates; defaults and feedback do.
Interventions with the best evidence:
- Order-entry decision support that displays the diagnostic criteria and offers a one-click delayed prescription option.
- Public clinician commitment - patient-facing signage and a signed commitment to appropriate antibiotic use has reduced prescribing in randomized trials.
- Individualized audit and feedback with peer comparison, delivered promptly and by name rather than as an anonymous dashboard.
- Change the default documentation: make "watchful waiting with safety net" the easy template, and require a free-text justification to order an antibiotic for acute sinusitis or bronchitis.
- Script training - clinicians who can explain why without dismissing the patient score higher on satisfaction.
Measurement:
- Primary: percentage of acute sinusitis/bronchitis visits with an antibiotic prescription; secondary balancing measures - 30-day return visits, ED visits, complications, patient satisfaction scores, and clinic-level CDI rates.
- Report monthly with a run chart, and set a realistic stretch target rather than an immediate network average.
Framing for clinicians: the goal is not fewer prescriptions, it is the right ones - and satisfaction is driven by being heard and given a plan, not by the prescription pad.