Allergies are different for every individual. Different allergens can cause an immune system reaction including stuffy nose, runny nose, sneezing, post-nasal drip, itchy eyes and swollen eyelids suggests the University of Maryland Medical Center. Some allergens are more prominent in the spring and are referred to as seasonal allergies. These allergens can also vary from one region of the United States to another.
Grass Pollen
Pollen from grass appear in late spring, suggests the University of Maryland Medical Center. These appear when the plants are beginning the reproduction process. The pollens are the grass seeds that fly through the air and land in a new area to produce more grass. Because the pollens are airborne, people can inhale them resulting in various allergic responses. The pollen can attach to clothing, hair, skin and even pets who play in the grass. Avoiding grass pollen can be very difficult but people can stay indoors, keep the household windows closed and use an antihistamine medication to manage allergen responses.
Tree and Flower Pollen
Like grass, trees and flowers produce seeds that become airborne to pollenate elsewhere. Some trees produce visible flowers consisting of seeds but regular spring flowers also produce seeds that fly through the air. The pollen travels through the air and lands in a new area to reproduce the plant species. Individuals can inhale the pollen while being outdoors and can also come in contact with the allergen when exposed to other individuals or animals who were outside. The University of Maryland Medical Center points out that pollen from trees is most common in spring. Depending on the region, specific types of flowers pollenate in the spring while others may do so in the fall or summer months.
Mold and Fungi
Fungi and mold can cause allergies year-round. Warm spring weather creates the ideal environment for the spores to grow suggests MayoClinic.com. People may notice a flare-up of mold allergies in the spring as the temperatures warm up. The symptoms are likely to persist through the summer and fall seasons until the temperature drops again. Molds can be found in the home wherever moisture exists and outside in piles of leaves from the previous fall and winter season. KidsHealth.org explains that molds try to reproduce like plants and give off spores into the air at various times of the year.
