When the flowers are in full bloom, for many pollen-allergic people, the sights are not for appreciation, surrounded by flowers is a disaster for them. In addition to the spring 'specialty' pollen, allergens There are many kinds of things, and friends around you often learn to know their 'enemies' and pay more attention. The allergic reaction is also very diverse. The most obvious is a runny nose, sneezing, and sometimes very serious. For example, stomach cramps, dizziness or even breathing difficulties. In addition, there are some other symptoms that are 'very different'. If you do not know your own 'defense system', you may find it difficult to think of allergies. The new era of science and technology (popsci) Several kinds of allergic reactions that are not common or even 'exotic' have been reported, and several confusing allergy symptoms have been summarized.
allergy
At present, allergies are usually defined by the presence of immunoglobulin E (IgE antibodies). Allergens bind to IgE antibodies and trigger release of histamine in the sensitive human body. Histamine binds to cells in the body, if enough It can cause sneezing, itching, and other seasonal allergies. This is why many people take phenformin or other antihistamines to prevent allergic reactions.
Several exotic reactions are also allergic
Bracket metal content causes rash
In the case reported in 2004, an 11-year-old boy had an itchy rash on the abdomen and on the skin of his wristwatch a week after installing the braces. He found that the boy was allergic to the nickel in the braces. Metals are often mixed with other metals, coins, jewelry frames, keys, and fixtures found in homes. Nickel is also a common metal that can cause allergies and can cause redness, itching, and raised rashes.
Tattoo ink triggers skin tumors
In a case reported by the University of Maryland in 2008, a 38-year-old man developed a skin tumor a month after tattooing. In another study in 2010, the researchers analyzed eight patients with tattooed skin tumors and found a red color. Tattoo ink is associated with most skin tumors. This may be because the skin recognizes the red ink as a foreign species and triggers an immune response.
Sunlight can also cause skin swelling
Some people are allergic to sunlight. Blisters, urticaria, and swelling of the skin can occur in the sun. A German study in 2011 found that in Europe, the Americas and Scandinavia, about 10% to 20% People are allergic to the 'sun', usually caused by ultraviolet light.
The swelling of the tongue is actually a fruit trouble
People with hay fever may also need to pay attention to other things. Some fruits and vegetables may cause itching, causing allergic symptoms such as mouth, face, lips, and throat swelling. This condition is called oral allergy syndrome. Immune system treatment Some proteins in fruits and vegetables appear to be the same as those encountered in pollen in the air. According to the American Society of Allergy, Asthma and Immunology, this syndrome affects up to one-third of allergic patients and is readily available. May happen.
Red butt may be an allergic reaction
People who have been exposed to certain metals, drugs, plants, or herbs may suffer from 'Skull Defects'. This is a bright red rash that occurs mainly on the buttocks, and the 'effect' is very similar to that of the red bottom of a beak. These red rashes may be Appearing on the anus, genitals and inner thighs, it is not only itchy but also very painful. Fortunately, this syndrome does not pose any serious health risks. According to a review published in the 2011 American Journal of Clinical Dermatology, exposure to mercury, gold and Nickel and other metals can trigger this type of reaction. Recent studies have found that this type of allergic reaction can also be triggered by intravenous injection, skin use or taking antibiotics and antibiotics.
'Onion mold' Allergy caused by pneumonia
The most likely to think of onions is tears, but according to one case reported this year, an onion farmer in Japan had symptoms of cough and shortness of breath after being 'in' with the root vegetables for too long. It turned out that the farmer was allergic to a fungus called Aspergillus. This kind of fungus that grows on the onion skin causes a disease called allergic pneumonia. This happens when the alveoli become inflamed. When not in contact When onions, symptoms disappear.
Several confusing allergies
√ is allergic
Allergic rhinitis
Seasonal allergies such as allergic rhinitis, hay fever, etc. often occur in spring and summer, because pollen and mold spores are released by the plants in a frenzy and are sucked into the nose by people who happen to be on the side. For sensitive people Said that these tiny substances can cause serious irritation, including runny nose, itching, sneezing, congestion and even physical weakness.
In addition to seasonal rhinitis, some rhinitis can 'rough up' the patient for a full year. Dust mites, ticks, pet dander and mildew may cause sneezing, stuffy nose, itching and other symptoms. In addition, sensitivity to certain specific foods Causes these symptoms.
Food and venom allergy
Food allergies and allergic rhinitis are about the same, but its response is more aggressive and more severe. Some people may not have urticaria or itchy eyes when they come in contact with allergens, but they have direct systemic allergic reactions. When the body releases too much histamine, the airways will tighten, the tongue and throat will swell, and the blood pressure will drop. After some people come into contact with food allergens, the cells will release histamine immediately, causing blood vessels to leak. If not With medical intervention, many people with anaphylactic shock may die.
Many allergens can theoretically cause systemic allergic reactions, but some allergens have been classified as 'killer' levels, including latex, penicillin, drugs, and insect bites. There are also 'old faces' that often cause harm in foods, such as nuts. , Fish and shellfish, Eggs, Soybeans, Milk, etc.
Most food allergies cannot intervene because they occur at the organ level. However, a mammalian meat allergy is caused by foreign enemies. This allergic reaction to red meat is caused by an infected lone star. Caused by a bite by this particular insect, it can cause humans to have an allergy to a carbohydrate called galactose-alpha-1, 3-galactose. When infected people eat beef or pork, their body triggers. IgE mediated reaction, release of histamine.
Local skin irritation
Not all allergies are derived from injections, digestion or inhalation.
Allergic contact dermatitis occurs when sensitive skin comes in contact with allergens. It may cause allergies from latex gloves, metal nickel, and cosmetics. In this case, the reaction usually stays on the surface. The 2008 study found that , In addition to causing common allergic reactions such as itchy rashes, poisonous oaks may also show rare signs of dark spots on the skin. A large amount of secreted resin will form black, 'shiny' precipitates on clothes and skin. The dark spots will eventually fall off and the skin will heal without leaving scars. However, latex can sometimes cause severe anaphylactic shock.
× not allergic
Food intolerance
Food intolerance differs from food allergies. From a technical perspective, food intolerance is not an allergy. It can be very serious, but it is usually not to death.
The most common food intolerance is lactose intolerance. The difference between allergies and intolerance can also be seen in the 'killing power' of milk: those who are allergic to milk, if their breakfast breaks into a drop Milk can cause allergic reactions, leading to urticaria, pruritus, and even systemic allergies. However, for people who are lactose intolerant, brewing oatmeal with milk may cause them to experience symptoms such as diarrhea, constipation or cramps. In the analysis process, exposure to milk from people allergic to milk may cause the production of histamine, and lactose-intolerant people do not produce enough lactase to break down the lactose in the milk just when they are hungry. Some foods There is no clear source of intolerance. For example, onions, garlic and their compatriots threaten the intestines.
Autoimmune diseases
The gluten-free foods that have become popular in recent years are caused by a disease called celiac disease. However, it is not an IgE-mediated food allergy but an autoimmune disease. Patients with celiac disease may experience multiple symptoms. Including fatigue or nausea after eating gluten, some of which overlap with food allergies or food intolerance symptoms. But the main symptoms of the abdomen are completely different. For celiac disease, intake of gluten will prevent normal nutrient absorption. Most patients with celiac disease will fully recover after proper treatment, but some patients will suffer from osteoporosis (not normal digestion of calcium), anemia (not normal digestion of iron) and other related health problems.
