Bronchitis
Inflammation of the bronchial tubes that carry air to the lungs. Presents with persistent cough, mucus production, and respiratory discomfort. Can be acute (short-term) or chronic (long-term). Early treatment prevents complications and improves recovery.
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What is Bronchitis?
Bronchitis is inflammation of the bronchial tubes carrying air to and from your lungs. When irritated, they produce excess mucus, leading to persistent cough and breathing difficulty.
Common Signs
Persistent cough
Excessive sputum production (clear, yellow, or greenish)
Sore throat
Runny or stuffy nose
Wheezing or whistling sound when breathing
Headache
Back and muscle aches
Extreme fatigue or tiredness
Low-grade fever (100°F to 100.4°F)
Chest discomfort from coughing
Shortness of breath
Loss of appetite
Types of Bronchitis
Acute Bronchitis
Short-term inflammation of bronchial tubes
Duration: Usually 1-3 weeks; cough may persist 2-4 weeks after onset
Causes: Viral infection (rhinovirus, coronavirus, influenza); follows upper respiratory infection
Contagious: Yes, for first few days while viral
Chronic Bronchitis
Long-term inflammation; part of COPD
Duration: Productive cough for at least 3 weeks; recurring episodes for 2+ consecutive years
Causes: Smoking (primary cause); secondhand smoke; air pollution; genetic predisposition
Contagious: Not contagious (non-infectious cause)
Emergency Symptoms
Cough Producing Blood
Hemoptysis; indicates possible serious lung condition
Persistent Cough >3 Weeks
Suggests chronic bronchitis or complications
Severe Chest Pain
May indicate pneumonia or other serious condition
Sleep Disruption
Cough preventing sleep indicates severity
Discolored Mucus Production
Yellow, green, or blood-tinged sputum suggests infection
Unexplained Weight Loss
Associated with cough; may indicate serious illness
High Fever (>100.4°F/38°C)
Persistent fever above baseline
Wheezing or Shortness of Breath
Difficulty breathing; respiratory distress
🚨 Call 911 for severe symptoms.
Risk Factors
Cigarette Smoking
Primary risk factor for bronchitis; direct irritation of airways
Secondhand Smoke Exposure
Passive smoking increases risk significantly
Weak or Compromised Immune System
HIV/AIDS, cancer treatment, immunosuppressive drugs
History of Asthma
Asthmatics have reactive airways; increased bronchitis risk
Allergies
Underlying airway inflammation increases susceptibility
Gastroesophageal Reflux Disease (GERD)
Stomach acid damages airways; increases bronchitis risk
Occupational Exposure to Irritants
Dust, chemicals, fumes in workplace environment
Family History of Lung Disease
Genetic predisposition to COPD and bronchitis
Recent Upper Respiratory Infection
Viral infection that spreads to lower airways
Age (Very Young or Elderly)
Infants, young children, and elderly have weaker immunity
Air Pollution Exposure
Long-term exposure to poor air quality
Recent Illness or Hospitalization
Weakened immune system increases risk
What Causes Bronchitis?
Respiratory Viruses
80-90% of acute bronchitis cases
Antibiotics not effective; supportive care
Bacterial Infection
10-20% of acute bronchitis; secondary infections
Yellow/green sputum suggests bacterial involvement
Environmental Irritants
Chronic bronchitis primary cause; acute exacerbations
Chronic bronchitis develops from repeated exposure
How It's Diagnosed
Physical Examination & History
Doctor listens to lungs with stethoscope; assesses cough characteristics and duration
Chest X-ray
Imaging to rule out pneumonia; shows bronchial wall thickening
Blood Oxygen Saturation (SpO2)
Pulse oximetry measures oxygen levels in blood
Pulmonary Function Tests (PFT)
Spirometry measures lung capacity and airflow; assesses airway obstruction
Blood Tests
Complete blood count; evaluates for bacterial vs viral infection
Sputum Culture & Analysis
Examines mucus sample to identify pathogens and guide treatment
Throat Culture
Rules out strep throat or other bacterial throat infections
CT Scan of Chest
Advanced imaging if chronic bronchitis suspected or complications
Acute Bronchitis Treatment
Rest & Hydration
Allow body to fight infection naturally
Duration: Throughout acute phase
Cough Management
Symptomatic relief while allowing coughing to clear airways
Duration: As needed during acute phase
Pain & Fever Relief
Over-the-counter medications for discomfort
Duration: As directed; usually 4-6 hours between doses
Nasal Decongestants
Relief for runny or stuffy nose
Duration: As needed for nasal congestion
Expectorants
Thins mucus to ease clearing
Duration: As directed; typically 4-6 hours apart
Humidification
Moist air helps soothe irritated airways
Duration: During acute symptoms
Antibiotics (If Bacterial)
Only if bacterial infection confirmed
Duration: Complete full course (7-10 days)
Chronic Bronchitis Management
Smoking Cessation
Most critical intervention to prevent progression
Duration: Permanent lifestyle change
Bronchodilators
Medications to open airways and ease breathing
Duration: Ongoing as prescribed
Corticosteroid Inhalers
Reduces airway inflammation
Duration: Daily use; long-term
Combination Inhalers
Combines bronchodilator and corticosteroid
Duration: Ongoing maintenance therapy
Mucolytics
Thins thick secretions for easier clearance
Duration: As prescribed
Supplemental Oxygen
If oxygen levels are low (SpO2 <88%)
Duration: As needed; may be continuous
Pulmonary Rehabilitation
Structured exercise and breathing training program
Duration: 12 weeks typically; ongoing maintenance
Annual Flu Vaccine & Pneumococcal Vaccine
Prevents respiratory infections that cause exacerbations
Duration: Annual influenza; vaccines as recommended
Home Care Measures
Rest in bed during acute phase (first 2-3 days)
Stay well hydrated - drink water, herbal tea, warm broth, juice
Use humidifier to keep air moist (35-45% humidity ideal)
Gargle with warm salt water to soothe throat
Use saline nasal drops or spray to relieve congestion
Elevate head when sleeping to help drainage
Avoid smoking and secondhand smoke
Avoid air pollution, dust, and strong odors
Take pain reliever for fever and muscle aches
Use cough drops or honey to soothe throat irritation
Don't suppress productive cough - it helps clear mucus
Eat nutritious foods: chicken soup, fruits, vegetables
Consume warm liquids: tea with honey, warm lemon water
Use warm compress on chest for comfort
Keep room temperature comfortable but cool
Avoid strenuous activity until recovered
Wash hands frequently to prevent spreading
Cover mouth when coughing or sneezing
Use disposable tissues; don't reuse
Return to normal activities gradually after recovery
Recovery Timeline
Days 1-3
Peak symptoms; cough starts dry; fatigue and fever most pronounced
Days 3-7
Cough becomes productive (mucus); fever resolves; fatigue decreasing
Days 7-14
Most acute symptoms resolving; persistent dry cough common; returning to activity
Weeks 2-4
Cough gradually improving; may persist as lingering symptom
Weeks 4+
Complete recovery; residual cough may last 6-8 weeks total
Potential Complications
Pneumonia
Symptoms: High fever, productive cough, chest pain, shortness of breath, confusion
Management: Requires antibiotics and medical evaluation; may need hospitalization
Acute Exacerbation (Chronic Bronchitis)
Symptoms: Increased sputum production, color change, increased cough, wheezing
Management: Increased medication doses, possible antibiotics, medical evaluation
Respiratory Failure
Symptoms: Severe shortness of breath, confusion, blue lips/fingers, decreased alertness
Management: Emergency treatment; may require mechanical ventilation
Secondary Bacterial Infection
Symptoms: Yellow/green sputum, fever recurrence, increased cough
Management: Antibiotics after sputum culture confirmation
Chronic Obstructive Pulmonary Disease (COPD)
Symptoms: Progressive airway obstruction, chronic cough, exercise limitation
Management: Long-term management with inhalers, oxygen, pulmonary rehab
Hemoptysis
Symptoms: Blood in mucus; indicates tissue damage or infection
Management: Requires urgent medical evaluation
Asthma Development
Symptoms: Persistent wheezing, shortness of breath, reactive airways
Management: Asthma management; inhalers; pulmonary function testing
Sleep Disruption
Symptoms: Insomnia, daytime fatigue, impaired recovery
Management: Cough management, sleep position adjustment, medical treatment
Prevention Strategies
Don't smoke; avoid secondhand smoke exposure completely
Get annual influenza (flu) vaccination
Get pneumococcal vaccines (PCV13, PPSV23) if recommended
Practice good hand hygiene - wash hands frequently
Avoid close contact with people who have respiratory infections
Cover mouth when coughing or sneezing (elbow or tissue)
Stay home when sick to prevent spreading illness
Maintain overall good health with proper nutrition
Get adequate sleep (7-9 hours nightly)
Exercise regularly to strengthen immune system
Manage stress through relaxation techniques
Avoid occupational irritants or use protective equipment
Keep home environment clean and well-ventilated
Maintain proper humidity in home (35-45%)
Avoid air pollution when possible
Treat and manage GERD if present
Control asthma and allergies effectively
Keep COVID-19 vaccinations current
Avoid indoor air pollution sources
Consider air purifier if in polluted area
When to Seek Medical Care
Cough Lasting >3 Weeks
Persistent cough beyond expected recovery time
Blood in Sputum
Hemoptysis; requires urgent evaluation
Severe Chest Pain
Sharp pain with breathing; may indicate pneumonia
High Fever (>101°F)
Persistent fever; may indicate secondary infection
Difficulty Breathing
Shortness of breath or wheezing; respiratory distress
Confusion or Altered Mental Status
May indicate severe infection or low oxygen
Cyanosis (Blue Lips/Fingernails)
Indicates poor oxygen saturation; emergency
Rapid Heartbeat
Tachycardia; may indicate serious condition
Unexplained Weight Loss
Associated with persistent cough
Symptoms Not Improving
After 2 weeks despite home care
Wheezing/Increased Shortness of Breath
May indicate asthma development
Immunocompromised Status
Any respiratory symptoms need evaluation