Ms. Nam, 74, experienced shortness of breath, a productive cough, headache, and elevated blood pressure, leading doctors to diagnose a superinfected asthma attack.
Asthma patients should consult a respiratory specialist before traveling, carry their medication, and limit exposure to dust and pollen for a safe trip.
Allergic asthma easily recurs if patients only treat symptoms during an attack, self-discontinue medication, or have prolonged exposure to dust, mold, or pet dander.
Ms. Kieu, 61, experienced a severe heart arrhythmia compounded by asthma, with a rapid heart rate of 150 beats per minute and a significant drop in blood pressure. She underwent catheter ablation to prevent heart failure and stroke.
