Allergic in children is one of the most common childhood ailment that is mainly caused by allergies. Some of the symptoms may include a runny and itchy nose, sneezing, postnasal drip and nasal congestion
ALLERGY AND HYPERSENSITIVITY
Most people use the word “allergy” to describe all types of hypersensitivity. In this chapter, the most common forms of true allergy are described. A specific antibody — called IgE — is associated with these conditions.
The IgE antibody is found in high levels in allergic people. It reacts with symptom-causing allergens such as pollen, mould spores, animal dander, dust mites, and certain types of food or medications.
Allergies can be triggered or worsened even by non-allergic factors such as infections or airborne irritants. Plus, allergies give different symptoms to different children and can range from mild to life-threatening. Therefore, allergies are difficult to classify, and prevention and treatment vary from child to child. Today we cover here all about allergies.
THE FETUS AND ALLERGY
IgE antibodies are formed in the third or fourth month of pregnancy. Nine out of 10 children with a high IgE count at birth later develop allergies. However, three-quarters of people with allergies had a normal IgE count at birth. Diets that avoid potential allergens such as eggs or cow’s milk during pregnancy do not protect the unborn child from allergies.
Therefore, you should eat normally (but well) when pregnant. On the other hand, smoking does appear to increase the risk of developing an allergy later on.
THE INFANT AND ALLERGY
Some newborns produce IgE antibodies soon after birth. These are primarily to proteins in foods such as eggs and cow’s milk. Even the tiny amounts of such proteins present in breast milk are enough to trigger the process. Non-allergic children produce small amounts of IgE antibodies without having an allergic response.
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Some allergic children, however, produce high levels of IgE antibodies and develop allergic symptoms. Allergy to foods such as eggs, milk, and wheat may decline during toddler age, whereas allergy to fish, peas, peanuts, and shellfish lasts longer perhaps throughout life.
ALLERGIC ILLNESSES DURING THE FIRST YEAR
Atopic eczema is common in the first year. The child first develops dry, rough, slightly itchy skin. This is followed by a rash that appears first on the face, then gradually spreads over large areas of the body. The rash may ooze and be crusty.
It later moves to the back of the knees and inside the elbows. Much of eczema during the first 12 months is related to food allergies, most commonly to eggs and cow’s milk.
Food allergies can also give other symptoms, such as vomiting, flushed skin, itchiness, hives, or allergic swelling (particularly around the mouth and eyes). Other, less common symptoms are diarrhea, difficulty breathing, or slow growth.
Respiratory symptoms may show up within the first month of life, but normally they don’t appear until later in the first year. Early symptoms are a runny or blocked nose, sneezing, coughing, tendency to ear–nose–throat infections and bronchitis or bronchiolitis.
More rare during the first year are allergic eye symptoms and runny nose. Take great care with these respiratory responses. If they aren’t understood and attended to quickly, they can later develop into allergic asthma.
Allergic children may also have a sensitive digestive system, with tendency to colic, vomiting, frequent loose stools, and slow weight gain. Such children often have hypersensitive skin, respiratory system, and intestines before they develop an allergic illness. Fortunately, many hypersensitive children don’t become allergic later on.
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Real food allergies are uncommon, but the risk of developing diet-related allergies is greater with infants than with toddlers. The intestinal system isn’t fully developed in very young children, which can cause problems if the child receives sensitizing proteins (such as eggs or cow’s milk) too early.
INHERITANCE AND ENVIRONMENT
The likelihood of developing allergies is about 6 in 10 if both parents are allergic, and 3 in 10 if only one parent is allergic. If neither parents has allergies, there is still a 1 in 10 chance that the child will develop some form of allergy. It’s now accepted that we only inherit the tendency for allergy — not a particular allergic illness.
Factors in the environment can be divided into two groups. The first group consists of true allergens such as eggs, fish and seafood, dairy products, various grasses and tree pollens, dust, mold and fungal spores, feathers, and animal dander. These true allergens produce an 1gE-type reaction and symptoms appear upon exposure.
Other environmental factors that activate or aggravate allergic reactions can be considered a second group. These factors include air pollution, unhealthy indoor climate (including smoking), changes in diet, and so forth. This may explain why allergic diseases have increased so dramatically over the last decade or so.
BREAST FEEDING AND ALLERGY
While breast-feeding, should you avoid eggs, cow’s milk, etc. if your family has allergies? Research shows that eliminating such foods will reduce the levels of IgE antibodies and the symptoms of atopic eczema. But in the long run, there’s no difference in frequency or severity of allergic illnesses. The most important thing is for you to eat a well-balanced diet.