There are few plants that bloom in autumn, so why are there pollen allergies? In fact, the culprit of pollen allergies is not the colorful flowers, which usually come from trees or weeds. In the north, where allergies are common, the main source of autumn pollen allergies is wind-borne pollen from weeds such as artemisia, quinoa, humulus, and ragweed, which is transmitted through the air by the force of the wind. Ordinary people do not feel anything after inhalation, but for people with allergies, the air at this time seems to be "thorny", and it is painful to breathe when you go out.
Cold air: I am allergic to the cold air as soon as the weather changes, and the cold wind blows and sneezes non-stop, am I allergic to cold air?
In fact, this is a special type of rhinitis - vasomotor rhinitis. It is sensitive to temperature changes, and hot and cold air irritation can cause significant runny nose and sneezing. The symptoms are the same as allergic rhinitis, but the former is an allergy to a substance, and as long as you do not come into contact with the allergen, you will not have symptoms, while vasomotor rhinitis is a protective reaction that occurs due to the body's vasomotor function not keeping up with the change in air temperature.
Sunshine: When the sun shines, the skin is red and itchy, and I am allergic to the sun, this is not a joke!
Allergy to the sun is actually a type of ultraviolet allergy, also known as "solar dermatitis". It is characterized by itching, redness and swelling in the sun-exposed area, and the longer the sun exposure, the more severe the allergic reaction will be.
Wind: As soon as the cold wind blows, there will be bumps on the body, and the more you scratch it, the more itchy, can the wind also cause allergies?
This is actually urticaria, commonly known as "wind pimple" and "hives", which is a relatively common skin disease. The causes of urticaria are very complex, and some people develop itchy edema and wheals locally after a sudden drop in temperature or exposure to cold water.
Tears are a cold or allergies, don't be stupid and can't tell the difference
How to avoid autumn pollen allergies?