Allergy is related to congenital constitution. If one parent is allergic, newborn babies will be allergic about two-thirds of the time. In addition, if the baby comes into contact with non-staple food prematurely six months ago, it is easy to have allergies.
2 What is the reason for the baby's allergy? There are many diseases caused by allergy, including allergic asthma, atopic dermatitis, allergic rhinitis, food allergy, urticaria, contact allergy, mosquito bite allergy and drug allergy. Among them, allergic diseases closely related to food include atopic dermatitis, food allergy and urticaria, while allergic asthma is partly caused by cold food.
Food Allergy Food allergy is the most common in Taiwan Province Province. According to the above research, crab and shrimp, two kinds of shelled seafood, are one of the four major foods that cause allergies. In Taiwan Province Province, most people who are allergic to seafood may be allergic to fish, because the seafood they eat is not fresh, contains too much histamine produced by bacterial decomposition, and naturally lacks enzymes to decompose histamine, so even the fresh fish caught now are allergic to a small amount of histamine, but they are not really allergic to seafood.
Neonatal milk allergy is also a very common food allergy. Milk protein in milk is really easy to cause baby allergies. Neonatal milk allergy is a red rash on the trunk or whole body of newborns after drinking milk. Mild symptoms can lead to little red dot or erythema in a certain area of the baby's face. If the situation is serious, it will make the baby's face look very red, or it will develop into more serious seborrheic dermatitis or atopic dermatitis, which will make the baby feel itchy and want to scratch all the time.
In addition to rash, milk allergy may also cause diarrhea, vomiting, abdominal distension and other symptoms, and these symptoms will not appear immediately after drinking milk, some will appear later in the day, and some will even delay until 1 to 2 weeks before allergic symptoms appear.
In addition, peanut allergy is more common in Europe and America. Some people will have allergic symptoms after eating peanuts, and some people will even have anaphylactic shock. Although peanut allergy rarely occurs among children in China, more and more mixed-race children may still occur.
Atopic dermatitis refers to dry, itchy and scaly skin, which usually occurs in knees and elbows. The common food allergens of atopic dermatitis are crustaceans (such as shrimp and crab), drupes (such as walnuts, almonds and dried fruits), chocolates and processed foods (such as candied fruit, lily and candy). The main reason why processed foods can cause atopic dermatitis is that sulfur dioxide or sulfite is added to many processed foods, which can cause allergies. In addition, some people who eat milk, eggs and peanuts can cause atopic dermatitis.
Urticaria Urticaria refers to the sudden appearance of many pink rashes on limbs, trunk or whole body skin, which are itchy and similar to mosquito bites. There are many substances that induce urticaria, including viruses, drugs, food and so on. The onset time of food-induced urticaria will be very fast, that is, the skin will break out immediately after eating a certain food, so avoid foods that will induce this symptom. The food that induces urticaria is roughly the same as the food that causes atopic dermatitis mentioned above.
There are quite a few allergens that cause asthma due to allergic asthma, and food is rarely mentioned, but studies have shown that eating cold food, ice water or ice may also cause asthma.
3 How to prevent baby allergies and prevent allergic diseases, you can try to avoid allergic food when the baby is in mommy's stomach, and try to avoid contact with foods that cause allergies after the baby is born. Food is an allergen that can be well controlled by itself, so moms with a family history of allergies should avoid contact with allergens from the time of pregnancy.
Methods 1: Dietary regularity of pregnant mommy In order to reduce the chance of baby's allergy, no matter whether pregnant women are allergic or not, they should try to avoid eating foods that are easy to cause allergies (allergic pregnant mommy should avoid touching foods that may cause allergic diseases after 4 months of pregnancy). Foods that are easy to cause allergies are crustaceans, drupes, chocolates, processed foods, etc. Avoiding these foods can reduce the risk of atopic dermatitis or urticaria.
Method 2: Dietary patterns of breast-fed mothers Studies have shown that the longer a baby drinks breast milk, the less likely it is to be allergic. However, some mothers are breast-feeding, and the baby will still have symptoms of skin allergy, which makes mothers very confused.
The reason is still related to the food that mommy eats, because some studies have found that allergic substances are detected in breast milk, which is related to the fact that breastfeeding mothers eat a lot of foods that are easy to cause allergies; The food that mommy eats will be converted into breast milk for the baby to absorb, so if mommy eats a lot of food that is easy to cause allergies during breastfeeding, it will still affect the baby.
It is suggested that before the baby is one year old, nursing mothers should try to avoid some foods that are easy to cause allergies, such as shelled seafood, shelled dried fruits such as peanuts, melon seeds and drupes, and fluffy fruits such as kiwis and tomatoes. If mommy knows that she is allergic to protein or milk, she should avoid them, so as not to cause the baby allergy.
Method 3: Diet of the baby with high risk of allergy after birth. The main food source of infants in infancy is breast milk or infant formula. In order to reduce the chance of baby allergy, it is recommended that mommy breastfeed, preferably for more than 6 months. Some mothers can't breastfeed, so they use infant formula instead, which is mostly made of milk. Because the protective function of gastrointestinal mucosa in infants has not been fully developed, some infants are prone to the symptoms of neonatal milk allergy.
In order to avoid the occurrence of neonatal milk allergy, especially for infants with high allergy risk, it is recommended to use small molecular hydrolyzed protein infant milk powder, which is not easy to cause allergies. In addition, there is an amino acid milk powder, which is also suitable for infants with high allergy risk. In addition, a very small number of babies (about 0.5%) are still seriously allergic to their mothers' milk even if their mothers avoid eating foods that are easy to cause allergies. These babies also apply the above two kinds of milk powder to relieve allergic symptoms.
Method 4: Precautions for Adding Non-staple Food The baby grows up gradually and starts to add non-staple food around 4 months. However, if there is a family with allergic history at home, that is, the baby whose parents are allergic, it is best to postpone the addition of non-staple food to 6 months, but not later than 6 months, because adding non-staple food will lead to insufficient nutrition. The Department of Health suggests that in order to avoid baby allergies, non-staple foods containing eggs or wheat should be avoided prematurely, and people who are allergic to gluten should avoid eating cereals such as wheat, rye and oats.
At this stage, the baby should be exposed to various foods to increase nutrition. But because the baby will be given many different kinds of food, each baby's physique is different, and his reaction to each food is different. Some babies may be allergic to seafood, some to eggs or some to soybeans and so on. There are ways to add non-staple food without knowing which foods the baby may be allergic to. The principle is to test one food a day, instead of mixing multiple foods, so as to give the medicine at one time.
When adding non-staple food, we will gradually add various kinds of porridge, such as sparerib porridge or seafood porridge. Some babies are allergic to shellfish such as crabs, shrimps and mussels, and some babies are allergic to fish, but these will not be known until the baby has eaten them. Not every baby is allergic to seafood with shells, so it is better to cook seafood porridge for the baby. It is best to put only one kind of seafood at a time, so as to confirm whether the baby is allergic to any kind of seafood.
Protein is also a food that can easily cause baby's allergy, so when adding eggs, you can give your baby a taste of yolk first. If the baby is not allergic after eating the egg yolk, you can try the egg white again, and the addition time of the egg white can be delayed a little.
Method 5: Don't touch chocolate under one year old. It is recommended that babies under one year old should not eat chocolate, because cocoa beans, one of the raw materials for making chocolate, belong to dried fruits with shells and are allergic foods. Milk, another raw material for making chocolate, is also an allergen, so the baby should be older before touching it.
Method 6: Pay attention to foods containing eggs. Some babies are allergic to eggs, and parents will avoid letting them eat eggs. However, there are still many foods that contain eggs, but they can't be seen from the outside. For example, the ingredients of eggs will be added to children's favorite foods such as ice cream, biscuits and some pasta, so parents must carefully examine these foods.
Method 7: Eating less additives such as processed or cold food pigments, preservatives, spices and artificial sweeteners may induce allergies. In addition, many processed foods contain sulfur dioxide or sulfite, which may also cause allergies, so eat less processed foods. In addition, it is recommended not to eat food with unknown labels, because food with unknown labels may also contain many substances that cause allergies, and eating food without labels is even more worrying.
However, there are indeed some asthma patients in China who are related to cold food. Therefore, if you have asthma, you should try to eat less cold food such as watermelon, pear, orange, Chinese cabbage and white radish. Oil containing omega-6 fatty acids will also increase the occurrence of allergies, so try to use less oil containing omega-6 fatty acids such as corn oil, peanut oil and safflower seed oil.
Method 8: Avoid eating food that has caused allergies again. Avoiding eating food that has caused allergies again is the most effective and simple way to avoid food allergies. At the same time, it is best to try it once or twice after the allergic phenomenon occurs to confirm whether it is really caused by this kind of food. You can also go to the hospital and ask a doctor to do allergen screening or food stimulation test for some suspicious foods. However, it should be noted that there may be partial eclipse, malnutrition or unbalanced nutrition, which will affect future growth and development, so it is necessary to identify allergic foods and stay away from them.
Method 9: Eat more nutrients that can reduce allergies. Many studies have shown that eating more foods containing vitamin C, vitamin E, beta carotene and omega-3 fatty acids can reduce the occurrence of allergies. Therefore, it is suggested to eat more fresh fruits and vegetables, such as citrus fruits and lemons rich in vitamin C, carrots, red peppers and dark vegetables rich in beta carotene. Salmon, sardines and cod are rich in omega-3 fatty acids, and mustard oil and soybean oil containing omega-3 fatty acids can also be selected when using oil. In addition, protein's intake is also very important, such as fresh fish and chicken.
Probiotics and beneficial bacteria also help reduce allergies. Probiotics usually include lactic acid bacteria and bifidobacteria. For example, yogurt, yogurt and Yakult all contain lactic acid bacteria, but the lactic acid bacteria in these drinks belong to live bacteria. Because the baby's gastrointestinal tract under one year old is not fully developed, it is easy to be allergic and has weak resistance, so it is recommended that the baby over one year old start contact again. Bifidobacterium is added to some drinks; As for beneficial bacteria (to help them grow), fruits and vegetables rich in fructooligosaccharides, such as bananas, carrots, asparagus, onions and so on. Soybeans also contain some oligosaccharides.
Besides food, environment, sunlight, drugs and plants are also the causes of allergies. To find out the real allergen, you must go to the hospital for detailed testing and know your own allergen, so as to effectively avoid contact with allergens and minimize allergic damage.