In spring, we are easily allergic to some things, such as pollen, catkins and so on. So, what can we be allergic to catkins, pollen and so on? The following small series will take you to understand the causes of spring allergy to catkins, and how to prevent catkins allergy.
What is the reason for catkins allergy and why is it allergic to catkins
There are two types of cells in human body, mast cells and basophils, which are widely distributed in nasal mucosa
In the mucosa of stomach and intestines, around the microvessels in the connective tissue under the skin and in the capsule of internal organs. These two types of cells contain histamine, leukotriene, 5-hydroxytryptamine, Jigai and other allergic mediators. Under the stimulation of environmental factors such as chemicals, air pollution and sunlight radiation, a large number of free radicals will be produced in the body. If the free radicals are not removed in time after oxidation, the cell membranes of mast cells and basophils will be destroyed, and the cell membranes will degenerate, leading to cell instability. When the unstable cells meet the allergen, the antigen and antibody have a specific reaction, leading to the detachment of cell membrane and the release of allergic mediators. Allergic mediators can cause smooth muscle contraction, telangiectasia, permeability enhancement, mucus secretion and tissue damage, thus leading to allergic reactions. In the process of allergic reaction, allergic mediators play a direct role. Allergens are the external cause of allergic diseases, while the body's immune ability is low. A large number of free radicals on mast cells and basophils are the internal cause of allergic reactions. In addition, according to the theory of traditional Chinese medicine and the latest research results, allergy is mainly caused by wind, dampness, heat and evil accumulation in the blood and skin, or due to blood heat and external wind. That is to say, it has a considerable relationship with certain toxins in the blood of the human body.
The oil and polysaccharide contained in catkins will be digested by nasal secretions after being inhaled, and then more than ten kinds of antibodies will be released. If the antibody meets with the invading pollen and accumulates a lot, it will cause skin allergy.
According to expert research, there are two main reasons: on the one hand, due to the improvement of people's living standards, people eat a lot of eggs, meat products and other high protein, high calorie diet, resulting in the body's ability to produce antibodies, so when they encounter pollen and other antigens, they are more prone to allergic reactions. On the other hand, due to air pollution, water pollution and the extensive application of food additives, human body is exposed to more antigen substances, which leads to allergic diseases.
How to avoid allergy to catkins
Usually try to reduce high protein, high calorie diet, eat less refined food. People with a history of allergy, such as patients with allergic asthma, allergic rhinitis, urticaria, allergic dermatitis, and dampness, should try not to go to places with luxuriant flowers and trees, let alone smell flowers and plants; When going out for an outing, it's best to wear a hat, mask and long sleeve clothes, try to avoid direct contact with catkins, and take desensitizing drugs such as diphenhydramine and chlorpheniramine. In case of itchy skin, fever, cough and shortness of breath, you should leave here quickly. If the symptoms are mild, you can take diphenhydramine, chlorpheniramine or chlorpheniramine orally. Once the symptoms of asthma, it should be timely to the hospital for diagnosis and treatment.
Catkins is an unavoidable allergen. It is better to live indoors in the season of disease and close doors and windows to reduce the entry of outdoor sensitized catkins. Air conditioning can also achieve this goal. Try not to go to the wild. If you are allergic to vegetables and fruits, you should avoid eating those allergic plant foods.
2. Oral immunotherapy
As mentioned above, the catkins of Anemone are hard to avoid completely. Therefore, immunotherapy (commonly known as desensitization therapy) has become the main means of prevention of catkins. The principle of oral immunotherapy is to gradually increase the dose of catkins extract from less to more into patients (subcutaneous injection is the most commonly used immunotherapy, and the better effect), so as to produce immunological changes in patients, which is conducive to improving the immunity of patients to the catkins.
It has been proved by many years of observation at home and abroad that if the quality of allergen is high, the application is appropriate, the case selection is appropriate, and the method is correct, the effect is quite good. There is no definite conclusion on how long oral immunotherapy should be used, but it is generally advocated that effective cases should be persisted for 3-5 years. Although the food induced symptoms can not be treated by immunotherapy, there is cross reaction between catkins and vegetables or fruits. After one year of immunotherapy with their sensitive catkins, not only the symptoms of catkins improved, but also a considerable number of patients were able to eat their previously allergic catkins.
Avoid eating catkins allergy in spring
Dietary contraindications for catkins allergy
1. Avoid stimulating food
Generally speaking, spicy food will make blood vessels dilate, skin red, aggravating catkins allergy, catkins allergy to avoid eating. In addition, keep away from some irritating foods that cause allergies, such as mutton, sweets, wine and other foods. In addition, experts also suggested that wild vegetables should be eaten with caution. Because eating wild vegetables can cause sensitivity to ultraviolet rays, make skin red and swollen, aggravate catkins allergy symptoms.
2. Avoid high protein diet
Expert research shows that with the improvement of living standards, people eat more eggs, meat products and other high protein, high calorie diet, resulting in the body's ability to produce antibodies, so when encountering catkins and other antigens, they are more prone to allergic reactions. Therefore, catkins allergy should try to eat less high protein, high calorie diet, less refined food.
3. Don't eat raw
Different eating habits can also lead to different allergies. For example, some Japanese like to eat raw peanuts, and many of them have oral allergic reactions. But Chinese people who like fried peanuts as food are less allergic. Some Japanese scholars believe that the reason for peanut allergy may be due to the habit of eating raw peanuts. If the food is heated and eaten again, the allergens in the food will change accordingly, and may not be allergic.
4. Good food
Honey: American immunology experts believe that honey is very effective for catkins allergy. If you insist on drinking a spoonful of honey every day for two years, you can safely pass the spring and summer seasons with high incidence of catkins allergy. Experts speculate that there are two possible therapeutic mechanisms: one is that honey contains trace amount of bee venom, which is one of the 'natural drugs' used by doctors to treat allergic diseases such as asthma; the other is that honey contains certain catkins, so people will have certain resistance to catkins allergy after they are used to it, which is the same as the' desensitization therapy '. As for the way to drink honey, experts suggest that it is best not to heat it at high temperature. In addition, it is best not to drink honey allergy and infants under 1 year old.
Jujube: Japanese scholars have found that jujube contains a lot of antiallergic substance cyclic adenosine monophosphate, so they suggest that allergic people eat more jujube, boiled or raw, 10 at a time, three times a day. With 50 grams of Auricularia auricula and 30 jujubes stewed, has the effect of treating allergic purpura. However, do not eat jujube with carrots or cucumbers, or it will destroy vitamin C. In addition, jujube high sugar content, partial hot and humid, so there are cavities and often toothache, constipation patients are not suitable to eat.