Management of Cough and Colds in Infants Less Than 6 Months Old

Primary Recommendation

• The American Academy of Pediatrics recommends that over-the-counter cough and cold medications should not be used in infants under 6 months of age due to lack of proven efficacy and serious risks of toxicity and death 1, 2

Supportive Care Measures

• Gentle nasal suctioning can help clear secretions and improve breathing in infants with nasal congestion 1
• Maintaining adequate hydration through continued breastfeeding or formula feeding can help thin secretions 1
• Using a supported sitting position during feeding and rest can help expand lungs and improve respiratory symptoms 1
• Administering acetaminophen for fever and discomfort according to weight-based dosing can help reduce coughing episodes 1

Critical Safety Information

• Between 1969-2006, there were 43 deaths from decongestants in infants under 1 year and 41 deaths from antihistamines in children under 2 years 2
• Major pharmaceutical companies voluntarily removed cough and cold products for children under 2 years from the market in 2007 1, 2
• Topical decongestants should not be used in infants under 1 year due to narrow therapeutic window and risk of cardiovascular and CNS toxicity 3, 2

Red Flag Symptoms

• Respiratory rate >70 breaths/minute in infants is a red flag symptom requiring immediate medical attention 1
• Difficulty breathing, grunting, or cyanosis (blue discoloration) are red flag symptoms requiring immediate medical attention 1
• Oxygen saturation <92% is a red flag symptom requiring immediate medical attention 1
• Poor feeding or signs of dehydration (decreased wet diapers, sunken fontanelle, no tears when crying) are red flag symptoms requiring immediate medical attention 1
• Persistent high fever (rectal temperature ≥100.4°F/38°C in infants under 3 months) is a red flag symptom requiring immediate medical attention 1

Special Considerations for Pertussis

• Infants under 6 months are at highest risk for severe pertussis complications and death 4
• Azithromycin is the preferred macrolide for infants under 1 month due to lower risk of infantile hypertrophic pyloric stenosis compared to erythromycin 4
• For infants 1-5 months, azithromycin or clarithromycin are first-line agents for pertussis treatment 4

Antibiotic Use

• Do not prescribe antibiotics for viral upper respiratory infections (the vast majority of coughs and colds) 1
• If bacterial pneumonia is suspected based on clinical findings, amoxicillin is first-choice for children under 5 years 1

Prevention Strategies

• Emphasize hand hygiene with soap and water to prevent transmission of respiratory viruses 1
• Minimize exposure to tobacco smoke and other environmental irritants 5
• Ensure the infant is up-to-date on vaccinations, particularly pertussis vaccine for household contacts 4

Management of Cough and Cold in Infants Less Than 6 Months Old

Diagnosis and Treatment

• Consider pertussis if there is paroxysmal cough, post-tussive vomiting, or inspiratory whoop in infants under 6 months 6
• If cough persists beyond 4 weeks, transition to a systematic chronic cough evaluation, including obtaining a chest radiograph and using pediatric-specific cough management protocols 6, 7
• Look for specific cough pointers: coughing with feeding, digital clubbing, failure to thrive, and consider a 2-week trial of antibiotics targeting Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis for chronic wet cough without specific pointers 8

Prevention and Management

• Never use honey in infants under 12 months due to botulism risk 7
• Avoid codeine-containing medications because of potential for serious side effects including respiratory distress 7
• Do not use empirical asthma treatment unless other features consistent with asthma are present 6, 8

Prevention Strategies for Respiratory Infections in Infants < 6 months

Vaccination of Household Contacts (Cocooning)

• The American Academy of Pediatrics recommends that all household members and close caregivers be fully immunized, especially with the pertussis vaccine, to create a protective “cocoon” around infants who are too young to complete their own immunization series. 9

Seasonal Influenza Protection

• The American Academy of Pediatrics advises that household contacts and caregivers receive the annual influenza vaccine, which reduces the risk of transmitting influenza to infants under 6 months who are not yet eligible for vaccination themselves. 9

Pertussis Management in Infants < 6 Months

Antibiotic Selection for Suspected or Confirmed Pertussis

• The CDC recommends that for infants younger than 1 month, azithromycin is the preferred macrolide because it carries a lower risk of infantile hypertrophic pyloric stenosis (IHPS) than erythromycin. 10
• For infants aged 1–5 months, azithromycin or clarithromycin are considered first‑line agents for treatment of pertussis. 10

Safety Monitoring When Using Macrolides

• All infants < 1 month who receive a macrolide (azithromycin or clarithromycin) should be monitored for IHPS and other serious adverse events during therapy. 10

Risk‑Benefit Assessment

• The CDC states that, in this vulnerable age group, the risk of severe pertussis complications and death outweighs the potential risk of IHPS associated with macrolide therapy. 10