National pollen allergy warning spring pollen allergy time

Spring is the best time to enjoy flowers, but for some people who are allergic to pollen, this time may be a little uncomfortable. After all, there are things that make them uncomfortable everywhere. Where are people who are allergic to pollen in spring? And how to prevent it.

From March 24, 20/kloc-0 to March 24, 20/kloc-0, precipitation was scarce in most parts of the country, and the wind was weak and dry in some parts of the northwest, which was more conducive to the spread of pollen and had a high allergic index, especially in the north-central Shaanxi, northwest and southwest Gansu, north and northeast Qinghai, and southern Xinjiang. In addition, the situation in central and southern Guangdong and eastern Guangxi is similar.

Tomorrow, March 25th, rainy weather will begin to appear in the western region, and the degree of pollen allergy will be reduced. The situation in Guangdong and Guangxi will be significantly improved.

In Shandong, Henan, Jiangsu, Anhui, Hubei, Zhejiang and other central and eastern provinces, the pollen allergy index is not low, so everyone should also pay attention to protection.

There is basically no need to worry about pollen allergy in the northeast, most of Tibet, southeastern Qinghai and western Sichuan.

People who are sensitive to pollen should pay attention to fully arming themselves in the near future. Masks, hats, glasses, long-sleeved clothes, etc. You can wear it, especially a mask with high filtration density, and apply pollen blocker locally to the nasal cavity.

In addition, we can pay attention to adjusting the diet structure, eating less foods that are easy to get angry, eating more fresh vegetables and fruits rich in vitamin C, and increasing the intake of B vitamins, which are all conducive to alleviating allergic symptoms.

National pollen allergy early warning map

Spring pollen allergy is the most common in April-June every year, which is the outbreak season in southern China, and autumn pollen allergy is generally from late August to 10 every year, which is the outbreak season in northern China. The symptoms of both are the same, basically itchy and blocked nose, accompanied by sneezing, runny nose, itchy face, chest tightness and shortness of breath. Everyone's constitution will show different degrees of skin allergy. The arrival of spring and autumn every year will make the skin of many sensitive people particularly sensitive, and it will also induce other allergic phenomena, such as cosmetic allergies, for unknown reasons.

Pollen allergy is generally caused by pollen flowers, so the most basic way to prevent pollen allergy should be to try not to touch pollen, dust, mites, animal fur and other things that are easy to cause pollen allergy. It is especially necessary to take protective measures before going out. Keep the room dry and clean in spring. You can use drugs in advance to prevent it, or you can use drugs to treat it. Allergic people should also avoid smoking and other problems, which can prevent pollen allergy well.

: pollen allergy time in spring

1. If I have hay fever, which one should I hang up?

Take Beijing as an example. If the symptoms of rhinoconjunctivitis appear in spring, summer and autumn with high incidence of hay fever, or get worse in these two periods all the year round, you have to wonder whether you are allergic to pollen.

Some hospitals have allergy departments, or allergy departments. I suggest you go to these departments. On the one hand, it can detect allergens, on the other hand, it can treat symptoms. Knowing what the patient is allergic to, the doctor can make a more accurate judgment on the change or evolution of his condition (medically called prognosis).

Some hospitals may not have an allergy department, so they can go to the corresponding department for symptomatic treatment according to the symptoms. For example, if the symptoms of rhinitis are obvious, you can go to the otolaryngology department to have a look. Conjunctival symptoms are obvious, you can go to the ophthalmology department to see; If you have asthma, you can go to the respiratory department. Through regular treatment, at least control the symptoms first.

2. What tests should be done to diagnose hay fever?

In the Allergy Department, the following two tests are usually conducted to check allergens:

First of all, do a skin test, similar to the skin test done before penicillin injection, but the number of injections is much more than that of penicillin skin test, which requires more than 20 injections.

After the skin test, patients usually undergo another blood test to check for specific antibodies that cause allergies.

Of course, if you have a definite asthma patient, you will also have a lung function test before the skin test to ensure that your lung function is normal, because the skin test will use substances that may cause allergies to ensure safety.

3. What should patients with severe symptoms do?

If the symptoms of hay fever are mild, there is no asthma, and the symptoms of rhinitis and conjunctivitis mentioned above are not very serious, you can buy some safe oral antihistamines, such as loratadine and desloratadine, and try to take some. If the symptoms are not well controlled, please go to the hospital in time.

However, if you find that you can't control your medication and have obvious symptoms, especially when you have asthma, it is recommended to go to the hospital for examination.

4. What are the treatments for hay fever?

The treatment of pollinosis is to control the use of drugs in the pollen season; The second is to avoid contact with allergens, such as using pollen blocking agents (divided into two types, one is ointment and the other is dry powder), smearing or spraying them on the nasal mucosa to form a protective film to prevent pollen from contacting the nasal mucosa and not inducing symptoms; Third, in the long run, patients can do immunotherapy, which is called desensitization therapy.

Desensitization treatment is actually a kind of etiological treatment, which is somewhat similar to "fighting poison with poison". If the skin test shows that you are allergic to cypress pollen, we will make it into a series of extracts with different concentrations, from low concentration to high concentration and from low dose to high dose, and gradually increase the dose, so that you can tolerate cypress pollen, obviously relieve allergic symptoms and even avoid symptoms. The course of desensitization treatment is relatively long, usually taking 3 to 5 years.

For patients receiving desensitization treatment, we should pay attention to the following questions: 1. When there are contraindications (such as severe uncontrolled asthma, immune deficiency, serious autoimmune diseases, malignant tumors, serious cardiovascular and cerebrovascular diseases, etc.). ).) We can't do immunotherapy. 2. During desensitization treatment, if you suddenly have a fever or a cold, etc. Or asthma attacks are not well controlled, treatment should be suspended. 3. If you are receiving COVID-19 vaccine injection, you should suspend immunotherapy within 0 to 2 weeks before and after injection.

5. Is hay fever cured?

Pollen disease is characterized by seasonality. To a certain extent, if desensitization therapy (immunotherapy) and immune tolerance are developed, the symptoms of pollinosis of patients can be obviously alleviated or will not attack for more than ten years or decades, then it can be called "radical cure" in a sense.

Allergy to pollen is hereditary, and your genes will not change. If you want to be completely allergic to pollen, the current technology can't do it. Therefore, it can only be relatively improved and cured, not completely.

What about pollen allergy?

Conventional measures to prevent pollinosis include wearing masks and goggles when going out, using pollen blockers, changing clothes in time after returning home, cleaning exposed skin parts such as face and nasal cavity, and paying attention to choosing the time with low pollen concentration and low wind when opening the window for ventilation.

In addition, special attention should be paid to the following points:

1. Know what pollen you are allergic to. If you are allergic to cypress pollen in spring, don't go to parks or mountainous areas with many trees, and don't go to areas or cities where allergens are relatively concentrated.

2. You can do some preventive treatment and prescribe some preventive drugs before the high season of hay fever comes.

For example, for rhinoconjunctivitis, nasal spray hormone is a good preventive drug, which takes effect in three days and reaches its peak in one week. Therefore, if the average patient can predict when to start the attack, it is recommended to start using it one week in advance.

For example, there is an eye drop called sodium cromoglycate, which has a good preventive and therapeutic effect on immediate allergic reactions. Its mechanism is that it can stabilize the cell membrane of mast cells, thus inhibiting the release of allergic reaction media. It is best to start eye drops at least two weeks before onset.

For asthma patients, glucocorticoid should be inhaled at least one to two weeks in advance to prevent asthma. Mild patients can take montelukast sodium orally for prevention. Special patients can even be prevented by inhaling glucocorticoids, long-acting 2- receptor agonists and even using montelukast sodium in combination.