Allergies: Causes, symptoms and treatment

 

Allergies are an abnormal immune system response to otherwise harmless foreign substances (Photo: Shutterstock)

I first became aware of allergies as a child. Growing up, exposure to dust would set off a bout of coughing and sneezing. You can imagine how difficult it was to limit playtime all because I had to stay away from dust lest I suffer the consequences. I outgrew this allergy only for it to come back in adulthood.