1, allergen results “positive”, think is allergic now parents the biggest misconception is that positive allergen test results is allergic, so do not eat a certain food, or even by some irrelevant check misleading, such as food IgG check, a lot of food is positive, all think is allergic, do not dare to eat milk, eggs, meat, and so on. This leads to malnutrition and a decline in health and illness. In fact, a positive food IgG test can only show that you have eaten and that your body has a memory function. The majority of us have a positive IgG test, which has no value in diagnosing food allergies. Even if the allergy specialist uses the allergen skin prick test and food specific IgE test, the positive result does not mean that you must be allergic to a certain substance, but also that you have no related allergic symptoms after contact or eating. 2, food allergy children do not strictly avoid allergens about food allergy, once a real diagnosis of allergy to a certain food, especially severe food allergy, you can not eat it. Not even all other foods containing its ingredients can be eaten. Avoidance is the most effective means of treatment and prevention. Buy food must look at the ingredients label, if there is no ingredient label remember to ask the seller, there is no allergy-causing ingredients Oh. 3, food intolerance as food allergies In addition to food allergies, medical science will not involve the immune system, not food protein-induced adverse food reactions, known as “food intolerance”. For example, lactose intolerance is a metabolic disorder caused by the body’s inability to digest the lactose in milk due to the lack of lactase, which is mainly manifested by symptoms such as bloating and diarrhea after consuming milk. These cases are mainly diagnosed by taking a medical history, and sometimes a hydrogen breath test is needed to confirm the diagnosis. These children do not need to stop using dairy products completely, but only need to consume lactose-free products. 4, treating adverse food reactions as food allergies Certain foods have pharmacological effects because they contain certain chemicals. For example, substances in chocolate, MSG, alcohol and caffeine may cause discomfort such as heartburn, redness of the skin, headache or various mood changes. These reactions are generally not life-threatening, and diagnosis is largely based on consultation and observation. Another category of adverse food reactions may also be the result of toxic effects, such as from spoiled or mishandled food. And some of the gastrointestinal or skin manifestations caused by food poisoning are similar to allergic reactions. However, food poisoning often has multiple people with similar or identical reactions, and if the same food is consumed again after proper handling there will be no symptoms of poisoning. 5. Is “eczema” caused by “wetness”? On the contrary, dry skin can disrupt the skin barrier function, which can easily cause eczema. 6. Is all hives caused by allergies? The most common causes are: bacterial or viral infections; drug allergies; food allergies; insect bites; other causes, etc. The duration of the disease is less than 6 weeks is acute urticaria. Chronic urticaria is defined as a condition that lasts for more than 6 weeks. Chronic urticaria is often mostly unrelated to allergies and may be caused by hot or cold stimuli, sun exposure, mechanical stimuli, chronic infections, or even emotional changes such as tension and anxiety. 7, allergic rhinitis as a cold how to distinguish between allergic rhinitis and the cold? First of all, there are symptoms of runny nose, sneezing and blocked nose when you have a cold, but you basically do not have an itchy nose when you have a cold. However, allergic rhinitis has a characteristic symptom of itchy nose. Secondly, the duration is different. The common cold is a self-limiting disease, usually lasting 5-7 days. Allergic rhinitis, however, lasts at least four weeks. Some people think that allergic rhinitis is nothing, it’s just a runny nose and sneezing, but it’s definitely not the case, it can cause several complications, if your allergic rhinitis is not properly controlled, it may lead to sinusitis, otitis media, and even develop into asthma. 8, asthma treatment drugs have a lot of side effects and can not be used for a long time? Asthma is a chronic inflammation and needs to be controlled by inhaled hormones for a long time. Many parents worry about the side effects of hormones and are reluctant to use them or stop them on their own after the symptoms are controlled, resulting in poor asthma control and even acute attacks leading to a persistent state of asthma and danger. In fact, the dose of inhaled hormone is very small, and there will be no adverse reactions when it is used in accordance with the requirements of the specialist. Parents are concerned about whether their children’s height will be affected, and there is no need to worry about it. On the contrary, children with recurrent asthma attacks and poorly controlled asthma are not as tall and less developed than healthy children because they are not treated with standard medication.