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Wondering what is an allergy? Your immune system is supposed to guard you against infections and other pathogens. A pathogen is a bacterium, a virus, or any other microorganism that can enter your body and cause a disease. Sometimes your immune system begins to consider even normal substances that enter your body, as pathogens. Depending on how seriously your immune system takes the substance that your body has just been exposed to, the reaction can be casual as well as severe. A casual reaction might be something like sneezing, coughing, irritation in the eyes, or rashes in the skin. Serious reactions might be swelling of the face or the skin, internal inflammation and swelling, vomiting, fainting, inability to breathe, or going into seizures.
There is no single allergy test because you might be allergic to different things. Some people are allergic to eggs. Some are allergic to honey. Allergies to nuts are so common in the US that they have to write on the food packages whether they contain nuts or not.
Some known allergy tests include the IgE total antibody test, the platelet thrombocytes count, the WBC-total counts of leucocytes test, and some other tests recommended by your doctor.
There are some known allergens
- Some food items (dairy products, honey, nuts, and such)
- Plant pollen
- Mold
- Dust mites
- Animal dander (microscopic flecks of skin and hair)
- Cockroaches and other insects
- Insect sting (bee sting, for example)
- Certain drugs and medications
The problem with allergies may be that most of the symptoms of allergies are also symptoms of certain illnesses and viral infections. For example, when people sneeze excessively, they think that they are coming down with the flu. Similarly, when rashes appear on the skin, they mistakenly think that they have got an infection. An allergy test can reveal the true source. And a good thing about taking an allergy test is that a good antihistamine medication can free you of these allergies and you can be in the company of pets and flowers without any problem.