Tuesday 16 August 2011

Have You Ever Wondered What Allergies And Allergic Reactions Really Are?

An Allergy is a hypersensitivity to foreign substances which are normally harmless but which produce a violent reaction in the allergy sufferer. Allergies are generally the body's effort to eliminate something it considers unsuitable. Typical allergic reactions are hay fever, migraine, asthma, allergic rhinitis, digestive disturbances, coeliac disease, conjunctivitis, urticaria, eczema, drowsiness, CFS, hyperactivity in children, tinnitus, recurrent sinusitis and ear infections. In a few people, the histamine (anaphylactic) reaction can cause muscle cramps, disorientation, unconsciousness, and death from shock or suffocation.

Types

There are different types of allergies, the most common being type1. When an allergen encounters cells capable of antibody formation, they then form IgE antibodies, which bind to the surface of other cells, called mast cells and basophils. In response to the attachment those cells release chemicals, called mediators of anaphylaxis, among them histamine. Those chemicals cause allergic reactions such as swelling or the secretion of mucus.

Almost any substance can be an allergen for an individual. Common allergens include certain foods, especially milk, wheat and eggs, pollens, dust, moulds, cosmetic and certain food additives.

An Allergy is not the same as intolerance. Allergies always involve the immune system, whereas intolerance, e.g. lactose intolerance, is caused by a lack of lactase, the enzyme that converts lactose into glucose.

Causes

Allergies may have many different causes-from pets to pollen to certain types of medicine and foods. In addition, allergic symptoms may be just as varied. While no one can predict when or how an allergy will develop, you can learn how to keep allergies under control by following a treatment plan and avoiding the things that aggravate your allergic symptoms.

Symptoms

When allergies flare up, they may cause a considerable amount of discomfort and inconvenience, but having allergies does not mean you have to struggle with your symptoms. Understanding how to help keep allergies from interfering with the things you want to do may make a big difference in how you feel and how you live.

Friday 5 August 2011

Mold Allergy - The Causes and Symptoms

Mold allergy is not the typical spring time allergy. It's an allergy that's based on the air borne fungal spores or fragments. Since the spores and fragments are very small, they have the ability to bypass the nose tract and reach the lungs. Being microscopic, the foreign particles may be very difficult to avoid and could be common in almost any home or building.

Origin of Molds

Molds grow in places where there are moisture and oxygen. In natural settings, they may thrive on rotting logs, vegetation, and places in shady areas. In the home, they could grow in damp basements, bathrooms, attics, closets, garages, or practically any place that has moisture. The prime locations for mold spores don't necessarily end at the home. Commercial places such as greenhouses, old buildings, bakeries, and industrial factories are a favorite place for mold growth as well. Molds have a ubiquitous nature and it's important that we understand how molds work and where they come from.

There are a number of allergenic fungi that cause allergic reactions in people. The Alternaria, Aspergillus, and Cephalosporium are commonly known fungi that fall under the Fungi Imperfecti group. These, specifically the Alternaria and Caldosporium are more prevalent outdoors than indoors. They are common during the autumn season, but sometimes they appear in the spring and summer. Indoors, Aspergillus and Penicillium are relatively persistent throughout the year with little effect from environmental factors.

Airborne isn't the only way that molds can get into the body. Common foods such as mushrooms, dried fruits, and cheese allow molds to be transported into the body. These items carry various types of molds that produce the same type of symptoms found from the airborne form. What are the typical symptoms?

Bold Symptoms of mold allergies are similar to the effects of seasonal allergies from pollen. Typical symptoms include watering of eyes, stuffy nose, wheezing, and asthma. Medical books will call this allergic rhinitis, which is normally associated with seasonal problems and hypersensitivity problems. Studies suggest that allergic rhinitis is similar to cold-like symptoms. The reaction to these molds is not always immediate. It can sometimes be delayed, depending on the severity. With the help of allergy medication, one can treat mold allergies as with other allergies.

A more dangerous form of allergen is "Toxic mold." Toxic mold, or statchybotys, is a deadly form of allergen that can affect children in a negative way. The more common manifestation of this type is black mold . Black mold causes infants and children to suffer skin rashes and other lung damage that can result in death.

In the southern states, foam boards (wall insulation) with no allowance for air space have caused the walls to become wicks for water leaks and floods. As a result, mold spores easily proliferated throughout the house, leaving black mold. The symptom s of black mold allergy include coughing of blood, anemia, wheezing, bloody nose and nausea.

Allergy-causing molds can range from the simple ones found in nature to the dangerous molds created by man-made construction. The effects of these molds can have a severe effect, including mortality. By understanding the causes and effects of mold allergies, one can start pursuing preventative treatments.