Allergies are found in people when they react with substances found in the environment. The substances mentioned here, refer to allergens and can be found in pollen, pets, insects, and food among other sources.
What does it mean when someone has an allergic reaction?
An allergic reaction refers to the way our bodies react to allergens. This can vary from mild to severe. It typically follows a chain of events because of the allergy. You must get an allergy test done on an allergy.
What are the different types of allergies?
- Pollen: Pollen causes inflammation and swelling in the inner lining of the nose and the conjunctiva which is a protective tissue found in the eyes. Some of the common symptoms found in people are congestion, sneezing, and watery eyes.
- Dust mites: They are the allergens that live in the dust found inside the house. People commonly refer to this kind of allergy as a dust allergy. The symptoms of this allergy are very similar to that of the pollen allergy.
- Molds: They are a type of fungi that is a very common causative agent of allergies. Mold grows in damp areas. They are found in places like leaf piles, hay, and basements of buildings.
- Certain types of foods: A lot of people have some sort of food allergy. Some people cannot tolerate consuming peanuts as it has an allergic reaction in their bodies. Oftentimes, you will hear the phrase “My throat is closing up” as a common reaction to this type of allergy. There are a lot of other types of allergies as well.
What is an allergy test?
An allergy test is a type of testing technique that is used to identify the different types of allergens mentioned above. The test is done to understand how your immunity system reacts to allergens. If you have any specific allergic reaction, then you have an allergy.
What are some common symptoms?
If you face any of the symptoms stated below, then it is recommended that you get an allergy test done. Here are some common symptoms found:
- Watery eyes
- Itchiness
- Headaches
- Congestion
- Wheezing
- Sore throat
- Breathlessness
The symptoms stated above are general symptoms of some types of allergies. However, if you face any food allergies, do look out for the following symptoms:
- If you find any swelling within 30 minutes of the food congestion. Swelling here refers to the swelling of the lips, face, or tongue.
- If you are profusely coughing or wheezing or if you are unable to breathe at ease.
- You may vomit or feel nausea after eating the congestion of the food.
- If you find yourself getting dizzy or feeling lightheaded.
If you find any of the above symptoms within 30 minutes of food congestion, it is best to get an allergy test done.
How is an allergy test done?
As we are aware, the allergy blood test is done to understand how your body reacts to substances like allergens. Typically, allergens cause your immunity system to produce a substance called immunoglobulin E (IgE) or antibodies. These antibodies result in the release of chemicals, resulting in an allergic reaction.
Types of allergy tests:
- Skin-based test: In these types of tests, the health professionals test the skin’s reactions to various allergens. If there is any sort of redness within 15 minutes of exposure, then you have an allergy.
- Intradermal test: If the above-mentioned test is inconclusive, you can consider getting this test done. It is done by injecting allergens onto the outer layer of the skin to check for reactions due to airborne allergens.
- Patch test: This test is used to determine the root cause of contact dermatitis. An allergen is introduced to the skin and a bandage is covered over it to check for a rash after about 48 to 96 hours.
- Allergy blood test: An allergy blood test is done by taking a sample of your blood and the health professional then measures the levels of IgE antibodies in it.
- Challenge test: This is done to check if certain individuals are allergic to certain drugs. They are introduced to the drug in small doses with slow increments in the dosage.
What can I do to prepare for it?
You might be asked to stop consuming antihistamines for about 3 to 7 days before the test. However, there are exceptions in terms of other medications. You can resume taking your asthma medications as usual. If you have any other conditions, it is best to consult your doctors about the same.
Results of an allergy test:
There are primarily 2 outcomes to the test. If the test returns a negative, then you are not allergic to the substance. However, if the test returns a positive then you are allergic to the substance.
If you are allergic to a certain substance, it is best to avoid it. Ensure you get a test done if you face any of the symptoms stated above.
Also Read: Air Pollution in Delhi Causes : An Overview
