Different Allergies And Their Cause

There are various kinds of allergies and they also have different causes. These allergies are caused due to series of reactions and they can have an adverse kind of effect on the health of the body. Basically the immune system of our body has been set up in a way so that it can protect the body from harmful, foreign substance like viruses and bacteria, which includes dirt and germs. There are times when the immune system doesn't develop properly or is just oversensitive and doesn't react right and these cause allergies.

In such instances the immune system reacts to things that aren't harmful and don't usually cause people any problems and these are also known as allergens. In simple words the term allergens is just an easier way to say "things that cause allergies". It has been seen that an oversensitive or improperly developed immune system sees these allergens and thus it sends out chemicals like histamine for combating with the same and these histamines cause the symptoms that are common with allergies.

Some of the most common systems of allergies are itching, watery eyes, runny nose, swelling, hives or rashes but different people have different symptoms even though the causes for most of them may remain the same. Some of the symptoms that are displayed depend on the part of the body the allergen comes in contact with because these are often breathed in. For example, pollen or dust causes coughing or wheezing and stuffy or runny noses and an itchy nose and throat.

Then there are also various kinds of plant allergies which are caused when they come in contact with the skin, so they cause rashes. The food allergies also result in nausea, vomiting, stomach pains or in severe cases and can also lead to life threatening reactions. There are various kinds of drug allergies, which tend to involve the entire body and hence these also have a variety of symptoms. These forms of allergies can come from various sources.

There are certain people who are allergic to cats and dogs also. Thus it is not really possible to come up with a single treatment plan that covers every type of allergy. Some of the most vital forms of allergies include Respiratory allergies which are caused by many different allergens, like dust, mildew, pollen, mold, and other options and the common symptoms of a respiratory allergy are sneezing, coughing, runny nose and watery eyes.

Then there is Asthma, which is caused due to the same sources like respiratory allergies, but their response causes the air passages to become inflamed and leads to problems in breathing. Food allergies are caused from foods like shellfish, cow's milk, soy, peanuts, wheat, and berries and can lead to fatal reactions. The skin allergies are caused due to many different sources, including foods, drugs, pollen, stress, and insect stings and result in itchiness and blotching of skin.

There are also insect allergies that are caused due to stings of the bee, fire ant, wasp, hornet, or yellow jacket and leads to itching and swelling along with pain at the site of the insect sting.

• John Palsson
• 29/11/2008, 2:59 AM
• 0 Comments