多数人会认为花粉过敏多发生在春季,其实夏秋季节花粉过敏的人数要比春季多数倍,而且症状也较重。因为春季致敏花粉多是树木花粉,花期短,在空气中停留时间也短,人体吸入的量较小,引起过敏的机会少,自然症状也会较轻微;夏秋季节是禾本科和牧草类植物的花期,如蒿属植物、律草、豚草、玉米、藜等,这些植物的花粉数量大,颗粒小,花期长,其中致 Most people think pollen allergy occurs in the spring, in fact, the number of allergic to summer and autumn pollen than the spring most times, and the symptoms are heavier. Because the spring pollen mostly pollen trees are pollen, short flowering time in the air is also short, the amount inhaled in the human body is small, less likely to cause allergies, natural symptoms will be less; the summer and autumn are grasses and forage plants Such as Artemisia, lawn grass, ragweed, corn, quinoa, etc. These plants have a large number of pollen, small particles, long flowering period, of which caused