March is the best season to go out and play. Many parents will take their children to the outdoor outing, among which watching the rape flowers has become the best choice. But recently, the news has revealed that the playing vision of 5-year-old girl's rape flowers has dropped to 0.4, which is terrible. How can outdoor outing prevent pollen allergy in spring?
Recently, a 20-year-old girl in Ningbo, Zhejiang Province, and her girlfriends enjoyed rape flowers. Her eyes were itchy and she was diagnosed with allergic conjunctivitis. Doctors said that spring is the high incidence season of this kind of disease, and the allergens are plant pollen, animal fur, feathers, etc. There was a 5-year-old girl who had not been treated for a long time after enjoying flowers. The naked vision of her left eye decreased to 0.04, and recovered to 0.4 & hellip after corneal transplantation;
In nature, pollen is a major allergen. When the spring is warm and the flowers are blooming, the most likely cause pollen allergy are seed trees, such as gopher tree, castor, skin of the earth and plane tree of France. These plants have large and small amount of pollen, high content in the air, and are easier to spread on windy days. Therefore, there are more people with pollen allergy in spring outings.
The oil and polysaccharide contained in the pollen can be digested by the secretion of nasal mucosa after being inhaled, and then more than ten kinds of antibodies are released. If this antibody meets the invading pollen and accumulates in a large amount, it will cause allergy.
According to the research of experts, there are two main reasons: on the one hand, due to the improvement of people's living standards, a large number of eggs, meat products and other high protein, high calorie diets are consumed in the diet, resulting in the body's ability to produce antibodies to be hyperactive, so when encountering antigens such as pollen, allergic reactions are more likely to occur. On the other hand, because of the air pollution, water pollution and the extensive application of food additives, the human body is exposed to more antigen substances, which promotes the occurrence of allergic diseases.
The diameter of pollen is generally about 30-50 microns. When they are dispersed in the air, they are easily absorbed into the respiratory tract. People with pollen allergy will have an allergic reaction when they inhale the pollen, which is called pollen allergy. The main symptoms of pollen allergy are sneezing, runny nose, tears, nose, eye and external ear itching. In serious cases, it will also induce tracheitis, bronchial asthma, pulmonary heart disease (mostly in summer and Autumn). The reason why pollen causes human allergy is that pollen contains rich proteins, some of which are the main allergens.
The symptoms of allergic skin contact with pollen are erythema, papule, small scales, pruritus or burning. Most of them are caused by sunlight after skin contact with pollen in the wild.
Prevention and treatment
1. To avoid pollen is an unavoidable allergen, it is better to live indoors in the season of onset, and close doors and windows to reduce the entry of outdoor allergenic pollen. This can also be achieved if there is air conditioning. Try not to go out into the wild. If accompany vegetable, fruit kind allergy, should avoid those allergic plant food. Here we remind you to try to eat less high protein, high calorie diet, less refined food. People with a history of allergies should not go to places where flowers and trees are flourishing as much as possible, let alone smell flowers and plants casually; take desensitizing drugs such as diphenhydramine and sismin when going out for outings, and leave the place quickly in case of itchy skin, fever, cough and shortness of breath.
2. If the application of anti-inflammatory agents has been confirmed, anti-inflammatory agents should be applied before the arrival of pollen season, such as local topical corticosteroid alonson ointment, etc. for those with nasal allergy symptoms, corticosteroids or sodium cromoglycate should be used, and those with asthma can be prevented by inhalation of corticosteroids or sodium cromoglycate.
3. For patients who have already developed symptomatic drugs, some drugs should be used for symptomatic treatment. In addition to continuing to use the above drugs, oral antihistamines should be taken to reduce the nasal symptoms, and attention should be paid to the selection of anti histamines without drowsiness, such as kairuitan, and decongestants (i.e. vasoconstrictors), such as kairuitan, to improve the nasal congestion. During the attack of asthma, inhaled antiasthmatic drugs such as & beta; 2 agonist Chuanlening, chuankangsu, salbutamol and & beta; 2 agonist and ipratropium bromide can be used. Severe cases need hospitalization.