By Dr. Narendra Gupta
Senior Consultant Physician & Chest Specialist

For many survivors of severe COVID-19, the end of the infection is only the beginning of a longer journey. «Long COVID» often drnarendraphysician.com manifests as persistent breathlessness, chest discomfort, and extreme fatigue. This is where Pulmonary Rehabilitation becomes essential—a specialized program designed to restore lung function and improve physical endurance.

COVID-19 can cause inflammation that leads to scarring (fibrosis) or stiffness in the lung tissues. This makes it harder for oxygen to pass into the bloodstream, leading to that «out of breath» feeling even during simple tasks like walking across a room.

A successful rehab plan is holistic, focusing on more than just the lungs:

• Breathing Retraining: Techniques like pursed-lip breathing and diaphragmatic (belly) breathing help the lungs expand more efficiently and reduce the work of breathing.
• Gradual Aerobic Exercise: Starting with low-impact movements—such as short walks or seated exercises—to rebuild the strength of the heart and muscles without overtaxing the respiratory system.
• Chest Physiotherapy: For those with lingering coughs or mucus, specific positions and percussion techniques help clear the airways.

Healing requires fuel. A diet rich in proteins helps repair damaged lung tissues, while staying hydrated ensures that any remaining mucus in the airways stays thin and easy to clear.

During recovery, it is crucial to use a Pulse Oximeter. If your oxygen levels (SpO2) drop significantly during mild exertion, it’s a sign that the rehab intensity needs to be adjusted under medical supervision.

Breathlessness often triggers anxiety, which in turn makes breathing even more difficult. Part of pulmonary rehab involves learning relaxation techniques to break this cycle and regain confidence in your body’s ability to heal.

Recovery from respiratory viral infections takes patience. By following a structured rehabilitation plan, most patients can see significant improvements in their breathing and energy levels within weeks.