alergie 用英语:

Dust is a common allergen in the household, and can cause sneezing and watery eyes.

I have an allergy to milk.

He has a drug allergy.

An allergy is a medical problem that some people get when they eat, breathe or touch certain things.

I can't eat nuts - I have an allergy to them.

These new allergy pills don't help me at all.