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Asthma and Allergies: Asthma Due to Allergens

Many asthmatics are severely aggravated by allergies to certain allergens. Common allergens that trigger asthma are:

Plant Pollen: Pollen grains are the powdery substance produced by plants for the process of reproduction. The individual pollen grains are very small in size, so collectively they appear as a powdery substance. The pollen grains of different plants have many different shapes and sizes. They are spread by wind, water or animal sources over far and wide places. Some people are allergic to the pollen of certain plants. Since the appearance of pollen is seasonal their allergy is also seasonal.

Wind-blown pollen is mainly observed to cause allergic asthma in humans. Generally the flowers of wind-pollinated plants are unattractive in appearance and smaller in size. Pollen is generally released early in the morning, often before sunrise. Many patients who are sensitive to them also develop symptoms around that time. For allergy sufferers it is important to know the pollen calendar of a place before one has plans to settle there or only visit the place if they are vulnerable to pollen allergies. It is also recommended to keep the windows closed and prefer to be in an air-conditioned atmosphere.

Fungi: Fungi are saprophytic plants of very small size. So they appear as fibrous growth on the growing surfaces. They are basically scavengers and help decompose and break down dead organisms into basic chemical components. Some fungi are very useful and are used in various uses. Antibiotics such as penicillin and streptomycin are produced from them. Various mushrooms are varieties of fungi. Alcohol, wine, cheese and various bakery products made by the process of fermentation are produced using many fungi. They reproduce mainly by vegetative growth.

The spores produced in the process are released as a powdery substance. Some people are allergic to these spores. They cause allergic asthma in humans. It helps to study the calendar of fungi as in the case of pollen. The peak periods for the concentration of fungal spores are the months of September to November and February to April. People who are allergic to various fungi may experience allergic reactions even after eating foods that contain them. Mushroom allergy is known to be very common.

People who suffer from mold allergies should take extra precautions in addition to following the mold calendar. They should avoid any accommodation in basements of buildings either for official or residential purposes. Plastered and painted walls should be preferred over papered walls, which may catch moisture more quickly. All rooms and spaces must be very well ventilated. Potted plants should be avoided in living spaces.

Household dust: Many people are allergic to house dust. The dust that settles on the various furniture and furnishings of the house is collectively called house dust. It can consist of the outdoor dust and also the various types of dust that come from inside the house. It can be from food scraps, from pets, from insects in the house, from human hair and skin and many other such sources.

The house collects more in carpets, bedding, old furniture and other nooks and crannies. Normally such dust is not visible. It can be seen in the axis of sunlight entering a room. People who are allergic to dust actually turn out to be allergic to dust mites. The most common house dust mite is called Dermatopagoides pteronyssinus. These mites live and feed on the ingredients in house dust. Those who are allergic to house dust should keep their living spaces scrupulously clean. They should avoid putting a lot of furniture and heavy furniture in their rooms.

Types of food: Many people are allergic to different types of food. Different symptoms can be caused in different people allergic to different foods such as flatulence, diarrhea, hives, headache, lip swelling, mouth sores and many more. Sometimes the symptoms appear immediately and sometimes they take a while to manifest. Also, food allergies can depend on seasonal changes. Many infants are allergic to milk, especially cow’s milk. Wheat, fish, egg and mushrooms are common food allergens. Diagnosis depends on elimination diets as skin tests are generally not very helpful.

Insects: Insect bites usually cause pain and swelling due to the introduction of insect venom into the system. The degree of manifestation of symptoms depends on the amount of poison. Insects can be of two types stinging insects and biting insects. However, the symptoms are never fatal. Some people are allergic to the remains of insects.

Animals: Many people are allergic to different animals, among which the most common are domestic animals such as cats and dogs. Other animals may be horses, cows, buffaloes and other fur-bearing animals. The allergy is mainly caused by animal dander.

Occupational allergens: Many people are allergic to substances they may come into contact with because of their occupation. Some common examples are bakers allergic to flour, cement workers allergic to cement, sulfur allergy in workers in various drug factories, workers allergic to leather dust, and hairdressers and beauticians allergic to various chemicals in beauty products.

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