Green Saliva, Congestion & Cough: Possible Causes & What to Do

Green/Yellow Sputum + Nasal Congestion + Severe Cough: Differential Diagnosis

Colored secretions suggest neutrophilic inflammation—often bacterial, but also viral, fungal, or non‑infectious.

Likely Conditions

Condition	Key Features	Typical Duration
Acute bacterial sinusitis	Purulent nasal discharge >10 d, facial pain/pressure, fever, cough worse at night	10–28 d untreated
Community‑acquired pneumonia	Fever, pleuritic pain, dyspnea, crackles, CXR infiltrate	Days–weeks
Acute bronchitis	Cough >5 d, sputum, wheeze, normal CXR; usually viral but bacterial superinfection possible	1–3 weeks
Exacerbation of COPD / asthma	Increased sputum volume/purulence, dyspnea, known history	Acute on chronic
Pertussis	Paroxysmal cough, whoop, post‑tussive emesis; lymphocytosis	Weeks–months
Fungal (aspergillosis, mucormycosis)	Immunocompromised, hemoptysis, CT halo sign	Subacute

Immediate Actions

1. See a clinician (PCP, urgent care, telehealth) for exam, vitals, pulse ox.
2. Expect: CXR if fever + focal signs; sputum Gram stain/culture if productive; CBC, CRP, procalcitonin.
3. Empiric antibiotics if bacterial pneumonia / severe sinusitis suspected (amoxicillin/clav, doxycycline, respiratory fluoroquinolone).
4. Symptomatic: guaifenesin, hydration, humidified air, honey (cough), nasal saline irrigation.

Red Flags → ER

• Hemoptysis >30 mL, SpO₂ <92%, altered mental status, hypotension, stridor.

Do not self‑prescribe antibiotics. Resistance and C. difficile risk are real.