Helen, 90, an American national, experienced coughing and shortness of breath, becoming critically ill due to severe pneumonia from influenza A complications.

My neighbor suggested smelling crushed garlic to clear phlegm, open airways, and promote sleep. My 5-year-old child has influenza A with nasal congestion; should I use this method? (Phuong Trinh, 34, Quang Tri)

Hospitalized with shortness of breath after playing sports, the 21-year-old man suffered cardiogenic shock and a drop in blood pressure due to pulmonary embolism, an emergency condition that can be fatal in an instant.

I am 45 years old and have smoked for many years. For the past three weeks, I have experienced shortness of breath and breathlessness when climbing stairs. Are these symptoms of lung cancer? (Pham Long, Hai Phong)

A patient suffering from gastroesophageal reflux disease frequently experiences shortness of breath, asking if this symptom is related to the condition and how it can be treated.

Shortness of breath even at rest, accompanied by a cough or chest pain, may indicate lung damage, disease, and an inability to meet the body's oxygen demands.