Whenever spring is in full bloom and everything is reviving, it is a great time to travel, but at this time, one of the biggest bummers can be the occurrence of allergies. Pollen is one of the most common allergens. If the following symptoms occur, allergies may have occurred. 1. Itchy eyes and sometimes swollen eyelids. 2. Itchy nose, sneezing all the time, and sometimes a lot of snot, mostly in a thin form. Or you may have a blocked nose without the symptoms of a cold. 3.A dry cough appears, and in severe cases, breathing difficulties may occur. 4.Red bumps appear on the skin and itchy skin. How to prevent pollen allergy? 1.Eat more green vegetables, especially foods rich in vitamin C. 2.Exercise properly to increase your immunity. 3.If the above symptoms appear after contact with a certain flower or plant, leave immediately. If you have breathing difficulties and other symptoms, you should immediately seek medical attention from the nearest hospital. How to treat pollen allergy symptoms? 1.If the above symptoms appear after contact with a certain flower or plant, then it is likely that you are allergic to this pollen, so try to avoid contact again in the future. 2.Medication: Oral antihistamines can be taken, which are OTC drugs and available in pharmacies. In severe cases, hormones or epinephrine should be applied. 3.Desensitization treatment. The most classic is to use the allergic pollen injection for step-by-step desensitization, consult your local hospital for desensitization drugs.