Asthma

What is this disease?

Symptoms

• Shortness of breath moderate

  A feeling of breathlessness or tightness in the chest, making it hard to inhale or exhale fully. Often worsens with physical activity or at night.

• Wheezing moderate

  A high-pitched whistling sound produced when breathing out, caused by narrowed air passages in the lungs.

• Persistent Coughing mild

  A dry or productive cough that is typically worse late at night, early in the morning, or during exercise and cold exposure.

• Chest Tightness moderate

  A feeling of pressure, squeezing, or heaviness across the chest area during breathing.

• Severe Respiratory Distress severe

  Rapid breathing where the skin pulls tightly between or under the ribs (retractions), accompanied by difficulty speaking complete sentences.

Causes & risk factors

• Genetic Predisposition & Family History risk factor

  A family history of asthma, eczema, or allergic rhinitis significantly increases susceptibility to developing chronic airway hyperresponsiveness and hypersensitivity.

• Airborne Allergens environmental

  Exposure to common indoor and outdoor allergens—such as house dust mites, pollen, pet dander, mold spores, and cockroach waste—triggers airway inflammation and acute spasms.

• Viral Respiratory Infections infectious

  Infections during early childhood (e.g., Respiratory Syncytial Virus [RSV] or rhinovirus) can alter lung development and cause long-term inflammation of the bronchial tubes.

• Environmental Air Pollutants & Smoke environmental

  Inhalation of tobacco smoke (firsthand or secondhand), vehicle emissions, particulate matter, chemical fumes, and strong odors irritates the lining of the airways.

• Occupational Dust & Chemical Exposure lifestyle

  Prolonged workplace exposure to industrial chemicals, wood dust, flour dust, or agricultural vapors can sensitize the respiratory tract and induce occupational asthma.

Diagnosis / tests

• Spirometry

  The primary pulmonary function test used to assess airflow limitation. It measures the total volume of air exhaled (FVC) and the volume exhaled in the first second (FEV1) before and after administering a bronchodilator to confirm reversibility.

• Peak Expiratory Flow Test

  A handheld monitoring test that measures the maximum speed of expiration. It helps track daily airflow variations, monitor response to treatment, and detect worsening asthma before symptoms appear.

• FeNO Breathing Test

  Measures the level of nitric oxide gas in exhaled breath to directly evaluate allergic airway inflammation, helping guide decisions on corticosteroid therapy dosage.

• Methacholine Challenge Test

  A bronchoprovocation test used when standard spirometry is inconclusive. Inhaling incremental doses of methacholine induces mild airway constriction in individuals with hyperreactive airways.

• Allergy Skin Prick and IgE Blood Test

  dentifies specific environmental allergens (such as dust mites, pollen, mold, or animal dander) that act as allergic triggers for asthma flare-ups.

First aid / immediate care

1. Sit the Person Upright

   Seat the person upright comfortably, leaning slightly forward if needed. Do not let them lie down, as sitting up helps open the airways and makes breathing easier.

2. Administer Quick-Relief Inhaler

   Give 1 puff of a quick-relief (salbutamol/reliever) inhaler, ideally using a spacer. Have the person take 4 slow breaths for that puff. Repeat up to 4 separate puffs.

3. Wait and Reassess

   Wait 4 minutes and monitor the person's breathing. Keep them calm and encourage slow, steady breathing to prevent hyperventilation.

4. Repeat Inhaler Dosing if Needed

   If breathing difficulty continues without improvement, administer another 4 separate puffs of the reliever inhaler following the same 1-puff, 4-breath sequence.

5. Call Emergency Services (Ambulance) Emergency

   If symptoms do not improve after 8–10 puffs, or if the person cannot speak in full sentences, has blue lips/nails, or collapses, call emergency medical services immediately. Continue giving 4 puffs every 4 minutes until help arrives.

Treatment

Educational information only — not a personal prescription. Always consult a qualified clinician.

• Inhaled Corticosteroids (ICS) medication

  Daily long-term preventive medication (e.g., fluticasone, budesonide) that reduces chronic swelling, inflammation, and mucus production inside the bronchial tubes to prevent asthma attacks.

• Short-Acting Beta Agonists (SABAs) medication

  Quick-relief bronchodilators (e.g., albuterol/salbutamol) used via inhaler to rapidly relax smooth muscle bands around airways during acute symptoms or sudden asthma flare-ups.

• Leukotriene Modifiers medication

  Oral daily medications (e.g., montelukast) that block leukotrienes—immune system chemicals that cause airway constriction, excessive mucus secretion, and chest tightness.

• Biologic Therapies procedure

  Targeted injectable monoclonal antibody treatments (e.g., omalizumab, mepolizumab) are prescribed for severe, uncontrolled allergic or eosinophilic asthma to block specific inflammatory pathways.

• Bronchial Thermoplasty procedure

  A minimally invasive thermal procedure for severe asthma where heat energy is applied to the smooth muscles of the lungs to reduce their thickness and decrease airway constriction.

Prevention / protection

• Identify and Avoid Known Triggers

  Track and eliminate exposure to individual environmental triggers such as airborne allergens (dust mites, pollen, pet dander), tobacco smoke, chemical fumes, and strong fragrances.

• Strict Adherence to Daily Controller Medications

  Take prescribed long-term preventive inhalers (such as inhaled corticosteroids) every day as directed, even when feeling healthy and free of active symptoms.

• Receive Recommended Vaccinations

  Stay up to date with annual influenza (flu) shots and pneumococcal vaccines to prevent severe viral and bacterial respiratory infections that can trigger asthma flare-ups.

• Maintain Healthy Indoor Air Quality

  Use HEPA air filters, keep indoor humidity below 50% to prevent mold growth, wash bedding weekly in hot water, and keep living spaces free of dust buildup.

• Daily Peak Flow Monitoring

  Regularly measure peak expiratory flow (PEF) rates to detect early signs of airway narrowing, allowing for proactive adjustments to medication before severe symptoms develop.

Diet & lifestyle

Lifestyle

Diet

Things to avoid

• Anti-Inflammatory & Antioxidant-Rich Foods diet

  Incorporate foods rich in Vitamin C, Vitamin D, and antioxidants (such as berries, leafy greens, and citrus fruits) as well as omega-3 fatty acids (salmon, flaxseeds) to support lung health and reduce systemic inflammation.

• Low-Impact Physical Activity with Warm-Ups exercise

  Engage in low-impact cardio such as swimming, walking, or cycling. Always perform a 10–15 minute warmup before exercise and carry a quick-relief inhaler to prevent exercise-induced bronchospasm.

• Environmental Controls & Humidity Management lifestyle

  Maintain indoor relative humidity below 50%, use HEPA air purifiers in sleeping areas, wash bed linens in hot water weekly, and avoid damp environments to prevent dust mite and mold accumulation.

• Smoke, Strong Fumes, and Specific Preservatives things to avoid

  Avoid exposure to secondhand tobacco smoke, wood burning, chemical cleaning agents, synthetic fragrances, and foods/beverages containing sulfites or artificial preservatives that can trigger bronchospasm.

• Stress Management & Healthy Weight Maintenance general advice

  Practice breathing exercises (such as the Buteyko or diaphragmatic breathing techniques) and maintain a healthy body mass index (BMI), as obesity can increase asthma severity and lower response to medications.

FAQs

Related health blogs