When pollen allergy occurs in spring, it is important to take necessary protective measures, stay away from allergens, wear masks outdoors, and apply medication when symptoms are severe. Spring is the season of flowers, everywhere will be filled with pollen, for some people with allergies, in the Spring Festival must do a good job of protection, such as going out to wear a mask, avoid going to the place where the flowers bloom and so on. Pollen allergies can cause severe allergic reactions such as rashes, itching, sneezing, runny nose and even asthma. Early use of calcium and vitamins in the early stages of pollen allergy can help to minimize the occurrence of allergic diseases and alleviate their symptoms. During the acute attack of allergic reactions, it is important to give anti-allergic medications, such as loratadine tablets, cetirizine tablets and so on.