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An allergy is an exaggerated response to a substance that is usually harmless. Asthma (sensitive airways), allergic rhinitis (sensitive nose), conjunctivitis (sensitive eyes) and eczema (sensitive skin) are all examples of allergic diseases. They can also be developed from food and drugs as well as other contact materials such as latex.
Children with allergic rhinitis may also have difficulty breathing through the nose and this can affect their concentration as well as performance in school.
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Eczema is an irritating rash that affects the front of the elbows, the back of the knees and the neck, causing itching, broken skin and skin infections. Food allergies are not as common as what people believe.
In Singapore, bird's nest is the commonest food allergen, along with eggs, milk and seafood. Signs of food allergy may include wheezing, rashes, sneezing, vomiting or stomach discomfort. It is important not to avoid foods without proper tests as this would cause unnecessary restrictions for a child.
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Airborne allergens (such as air pollutants, dust mite allergens, aerosols) are more commonly triggers of airway allergies such as asthma.
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