How allergies form in the body VnExpress Allergies are essentially a "mistake" by the immune system, overreacting to normally harmless environmental factors such as house dust and pollen.
Does air pollution worsen asthma? VnExpress I have suffered from asthma for many years and recently experienced increased coughing on days with polluted air, fine dust, and smoke. Can environmental factors worsen the condition? (Tran Mai, Hanoi)
Can cockroach allergy cause asthma? VnExpress I am allergic to cockroaches. Can this condition lead to severe respiratory problems, trigger or worsen asthma? (Thai Hung, Hanoi)
