By Dr. Malavika consultant pulmonologist Iswarya Hospital, OMR
What is Asthma?
Asthma is a chronic inflammatory disease of the airways in the lungs. In asthma, the air passages become swollen, sensitive, and narrowed, making it difficult for air to move in and out of the lungs. This narrowing may occur due to inflammation, tightening of airway muscles, and increased mucus production.
Asthma can affect people of all age groups, including children and adults. It may occur intermittently or persist for a long duration. Although asthma cannot always be completely cured, it can be effectively controlled with proper treatment and lifestyle modifications.
Today, asthma is becoming increasingly common due to rising air pollution, smoking, dust exposure, allergies, occupational exposure, and lifestyle changes.
Trigger Factors for asthma
Asthma symptoms may worsen when a person is exposed to certain triggers. These trigger factors vary from person to person.
Common asthma triggers include:
• Dust and house dust mites
• Smoke exposure and cigarette smoking
• Vaping and e-cigarettes
• Air pollution
• Strong perfumes and chemical fumes
• Pollen and seasonal allergies
• Animal dander
• Cold weather and sudden climate changes
• Viral respiratory infections
• Exercise in some individuals
• Emotional stress and anxiety
• Occupational dust and chemicals
• Certain medications such as aspirin or beta blockers in susceptible individuals
Identifying and avoiding triggers is an important part of asthma control.
Symptoms of Asthma
Asthma symptoms may be mild, moderate, or severe. Symptoms can occur occasionally or frequently depending on disease severity.
Common symptoms include:
• Recurrent cough
• Wheezing sound while breathing
• Shortness of breath
• Chest tightness
• Difficulty breathing
• Night-time or early morning cough
• Symptoms worsening during exercise or cold exposure
Some patients may have only persistent cough without wheezing, known as cough-variant asthma.
Severe asthma attacks may present with:
• Severe breathlessness
• Difficulty speaking
• Fast breathing
• Bluish discoloration of lips
• Low oxygen levels
Such symptoms require urgent medical attention
Diagnosis
Diagnosis of asthma is mainly based on clinical history, examination, and lung function tests.
Common investigations include:
Spirometry
Spirometry is one of the most important tests used to diagnose asthma. It measures airflow obstruction and improvement after bronchodilator administration.
Peak Expiratory Flow Rate (PEFR)
PEFR monitoring helps assess airway narrowing and variability in symptoms. Bronchodilator Reversibility Testing Improvement in lung function after inhaled bronchodilator supports the diagnosis of asthma.
Allergy Testing
In selected patients, allergy testing may help identify trigger factors.
Blood Investigations
Eosinophil count and serum IgE levels may be elevated in allergic asthma.
Chest Imaging
Chest X-ray or CT scan may be performed to rule out other lung diseases
Treatment
According to Dr. Malavika, Consultant Pulmonologist, early diagnosis and prompt treatment are the key factors in preventing asthma complications and improving long-term lung health. She emphasizes that asthma should never be ignored, as untreated asthma can gradually worsen and lead to repeated attacks, emergency hospital visits, reduced quality of life, and even permanent airway damage in some patients.
The cornerstone of asthma management is inhaled therapy. Inhaled corticosteroids help reduce airway inflammation and are considered the most effective long-term controller treatment. Bronchodilator inhalers help relax airway muscles and provide quick symptom relief. Depending on disease severity, some patients may require combination inhalers containing inhaled corticosteroids and long-acting bronchodilators.
Dr. Malavika strongly highlights the importance of using inhalers correctly and regularly as prescribed. One of the biggest misconceptions in society is the fear of inhalers. Many patients wrongly believe inhalers are addictive or harmful. In reality, inhalers deliver medication directly into the lungs in very small doses and are significantly safer than repeated oral steroid use or uncontrolled asthma attacks.
She further stresses that asthma treatment is not only about relieving symptoms during attacks, but more importantly about preventing future attacks, preserving lung function, and allowing patients to lead a completely normal and active life. With proper treatment adherence, trigger avoidance, regular follow-up, and patient education, most asthma patients can achieve excellent disease control.
During Acute Asthma Attack
Treatment may include:
• Nebulization
• Oxygen therapy
• Steroids
• Emergency bronchodilators
• Hospital admission in severe attacks
Early medical attention during worsening symptoms can prevent life-threatening complications. Proper inhaler technique, regular follow-up, and awareness regarding warning signs are extremely important for successful asthma control and prevention of severe attacks.
Prevention of Asthma
Although asthma may not always be completely preventable, several measures can help reduce symptoms and prevent attacks.
Preventive measures include:
• Avoid smoking and passive smoke exposure
• Avoid vaping and e-cigarettes
• Reduce dust exposure at home and workplace
• Maintain clean indoor air
• Use masks in polluted environments
• Avoid known allergens and trigger factors
• Take medications regularly as prescribed
• Follow correct inhaler technique
• Maintain healthy body weight
• Exercise regularly under medical guidance
• Take annual influenza vaccination when advised
• Seek early treatment for respiratory infections
Patient awareness and treatment adherence play a major role in preventing severe asthma attacks and improving quality of life.
Conclusion
Asthma is a manageable respiratory disease when diagnosed early and treated appropriately. Many patients can lead completely normal and active lives with proper medical care, regular follow-up, and avoidance of triggers. Public awareness regarding asthma symptoms, inhaler use, and early medical consultation is essential to reduce complications and improve respiratory health in the community.