Allergy

A-Z of Allergies
The function of the immune system is to protect the body against foreign substances or hostile invaders such as viruses, bacteria and harmful chemicals.

Sinusitis
Sinusitis, inflammation of the paranasal sinuses, is a common disease that may afflict people throughout their lives.

Glossary of terms
Baffled by basophils, ignorant about IgE? Here's what it all means.

Hives or urticaria
Lasting for minutes or days, hives (also called wheals or welts) are large, itchy red bumps on the skin. Hives can also last for a longer period

Anaphylaxis (allergic shock)
Anaphylaxis (allergic shock or anaphylactic shock) is the most severe form of an allergic reaction and can be life-threatening.