(Tiếng Việt) Tìm hiểu về dị ứng thời tiết

Seasonal allergies Hay fever occurs when your immune system overreacts to an outdoor allergen, such as pollen. The most common culprits are pollens from wind-pollenated plants, such as trees, grasses, and weeds. The pollens from insect-pollinated plants are too heavy to remain airborne for long, and...

Reasons Your Cough Is Not Improving

Reasons Your Cough Is Not Improving Reason 1: Irritated Airways After a Cold or Flu The most common cause of chronic cough is predictable. It’s the aftermath of a cold or other viral infection, says Norman H. Edelman, MD, chief medical officer of the American Lung Association. Most cold symptoms may...