Treatment of Upper Respiratory Symptoms in Second Trimester Pregnancy
Start with saline nasal rinses as first-line therapy, add intranasal corticosteroids (budesonide, fluticasone, or mometasone) for persistent symptoms, and use acetaminophen for discomfort—antibiotics are not indicated without evidence of bacterial infection. 1
Initial Conservative Management
This clinical presentation at 17 weeks gestation (second trimester) without fever suggests either pregnancy rhinitis or a viral upper respiratory infection, neither of which requires antibiotics. 1, 2
First-line interventions include:
- Saline nasal rinses/irrigations as primary therapy for symptom relief 1
- Adequate hydration and rest 1
- Warm facial compresses for additional comfort 1
- Acetaminophen (paracetamol) for any discomfort 3
These conservative measures are safe throughout pregnancy and should be attempted before escalating to pharmacotherapy. 1
Intranasal Corticosteroids for Persistent Symptoms
If conservative measures fail to provide adequate relief, intranasal corticosteroids are safe and effective at 17 weeks gestation. 4
- Modern intranasal corticosteroid sprays (budesonide, fluticasone, mometasone) are safe throughout pregnancy at recommended doses 4, 1
- These agents effectively control nasal inflammation and improve quality of life without detectable effects on maternal cortisol, fetal growth, or pregnancy outcomes 4
- Budesonide is often considered the preferred agent based on the most extensive safety data 1, 5
The guideline evidence specifically states that all modern nasal corticosteroids should be safe during pregnancy, and this recommendation applies to both first and second trimesters. 4
When Antibiotics Are NOT Indicated
Do not prescribe antibiotics for this presentation. 1
Antibiotics should be reserved only for true bacterial sinusitis, characterized by: 1
- Symptoms persisting ≥10 days without improvement, OR
- Worsening symptoms after initial improvement at 5-7 days (double worsening pattern), OR
- Endoscopic evidence of purulence 4
The absence of fever and the acute presentation make bacterial infection unlikely. 1
Medications to Avoid
Strictly avoid oral decongestants during pregnancy, particularly in the second trimester. 1, 6
- Oral decongestants are associated with potential congenital malformations 1, 6
- Nasal decongestants provide only temporary relief and lead to overuse with rebound rhinitis medicamentosa 2, 7
- If nasal decongestants are absolutely necessary, restrict use to maximum 7 days 2, 5
Other medications to avoid: 4, 1
- Tetracyclines
- Fluoroquinolones
- Trimethoprim-sulfamethoxazole
- Aminoglycosides
- Oral corticosteroids (especially in first trimester, but use caution throughout)
Differential Diagnosis Considerations
Pregnancy rhinitis is extremely common, affecting 20-39% of pregnant women, and can start at almost any gestational week. 2, 8
This condition is defined as nasal congestion without signs of respiratory tract infection and no known allergic cause, resolving within 2 weeks after delivery. 2, 7 The pathogenesis involves placental growth hormone and hormonal changes affecting nasal mucosa vasculature. 8
However, differentiate from bacterial sinusitis if symptoms persist beyond 10 days or worsen after initial improvement. 1
Red Flags Requiring Escalation
Monitor for complications indicating need for specialist consultation: 1
- High fever developing or persisting
- Severe headache
- Visual changes
- Periorbital swelling
- Symptoms persisting beyond 10 days without improvement
These may indicate orbital cellulitis, meningitis, or abscess formation requiring urgent evaluation and possible imaging. 1
Practical Algorithm
- Week 1-7 of symptoms: Saline rinses, hydration, acetaminophen as needed 1
- If inadequate relief: Add intranasal corticosteroid (budesonide, fluticasone, or mometasone) 4, 1
- If symptoms persist ≥10 days or worsen after improvement: Consider bacterial sinusitis and evaluate for antibiotics (penicillin or cephalosporin class only) 4, 1
- Throughout: Avoid oral decongestants and other contraindicated medications 1, 6