The onset of a new season often spells trouble for people who are allergic. A change in season brings about an increase in the quantity of antigens which cause allergy. They are pollen grains released from plants and trees, dust and dust mites, as well as molds and mildew that grow plentifully with the commencement of a favorable season. Given below are details about what causes seasonal allergies.

1. Pollen grains from trees and plants

Spring is the season when plants, weeds, shrubs, trees, grass create plenty of pollen to breed. Trees that release pollen are olive, birch, alder, juniper, hickory, cedar, elm, maple, oak and ash. Pollen grains are released in millions into the air or dispersed through insects and animals. As soon as they reach the inside of the nostrils, they cause an allergic reaction. Apart from the nose, they also come into contact with skin and eyes setting off allergic reactions confined locally. During summer, many varieties of grass propagate and release millions of pollens in their surroundings. People who are allergic to grass pollen often get a condition called urticaria, which shows up in the form of hives and the itching of the skin. During the fall season weeds and trees release pollens which affect a lot of people. The pollen grains are the most common cause of seasonal allergies.

what causes seasonal allergies

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2. Mold spores and mildew

Mold spores of the aspergillum, cladisporium, penicillium and alternaria family spark an allergic reaction in most people. Some people may be allergic to only one family while several other people will be sensitive to all these varieties of mold spores. Mold grows in areas that are highly humid and damp. Outdoors, there are several places which can be damp like the soil, rotting garbage, humus and densely vegetated areas. Indoors, places like the basement, the garage, the kitchen and the bedroom can be damp allowing mold to grow. When a seasonal change increases the dampness in the environment, molds flourish and release spores in the air. On breathing this spores laden air, people who are allergic immediately suffer an attack of allergy. Asthma patients can face serious risk from mold spores and mildew. Mildew is a form of fungus that releases spores which causes allergic reaction in many people.

3. Dust and dust mites

Many people are allergic to dust particles. Besides, dust also plays host to various microscopic organisms which feed off humans. The prominent among these allergy causing organisms that flourish in dusty areas is the dust mite. It feeds on discarded human skin cells and hair. Contact with dust mites can cause allergic reactions like skin hives rashes and itching. Dust mite feces is another antigen that causes severe allergic reaction in people. With the onset of the dry season, the decrease in humidity allows the dust mite feces to get airborne along with dust particles and reach our nostrils. Once inside, it starts off a severe allergic reaction.

To keep yourself safe from allergic reaction caused by these three critical causes of seasonal allergies, you need to practice basic precaution like keeping your surroundings clean and using protective equipment like masks wherever possible.