Allergic triad syndrome
The medical sector believes eczema is a kind of allergy Asthma and allergic rhinitis (commonly known as nasal allergy) have a very strong relationship with eczema. These three are known as the allergic triad syndrome.
Many researches around the world have provided much data that support the theory that eczema can turn into allergic rhinitis and asthma. In this particular condition, eczema occurs first and usually in young children. As allergic reactions are triggered by certain substances, the sensitized T-cells will enter the respiratory system through the blood. When the body is exposed to the allergens again, the respiratory system will produce allergic reactions and cause allergic rhinitis or asthma. Sometimes, these three allergies occur to a person at the same time. There are also some children who have eczema when they were babies but the condition improves at the age of 4 to 5; then they develop allergic rhinitis or asthma.
Eczema is very common in Hong Kong. It is estimated that 5-10% of the population has suffered from eczema. Parents should not overlook childhood eczema. Control the condition as soon as possible. This may reduce the risk of other allergies later on.