Allergies, also known as hypersensitivity reactions are a negative response of the immune systems of the body to a foreign substance that would otherwise be harmless. Any adverse reaction of the body to any substance that does not affect other people can be described as an allergy. The immune system gives an alarm for the production of antibodies. Antibodies are substances that protect the body from any external substance that might cause harm to the body or cause infections. Allergies make the body develop antibodies that identify particular allergens as a threat to the body even though it could be harmless.
Allergens are otherwise harmless substances that are mistaken by the immune system as being harmful. The reaction of the immune system towards the allergen is what causes the allergy symptoms. Different people are allergic to different allergens. The most common allergens include food, dust, some medicine animals, and insects. Allergies symptoms depend on the kind of allergy and the body part that is affected. Let me take you through some of the most common allergens and their allergic responses of the body.
A good number of people are allergic to one food or another. Children especially are known to respond negatively to some food. However, not all negative responses to some food can be described as allergies. Allergic reactions to some food usually occurs a short while after taking the food usually less than 30 minutes. The symptoms of food allergies can include several parts of the body. The most affected body parts are the mouth, nose, heart stomach, lungs, and the skin.
Pollen and dust allergies.
Pollen or dust when inhaled can lead to allergies and asthma symptoms. Not all people who are allergic to dust are allergic to pollen. The relationship between them is that in most cases, affect the respiratory system and both are carried by the wind. Sometimes pollen and dust particles travel so many miles. Their symptoms include. Itching in the eyes, sneezing, running nose, and difficulty in breathing.
Exposure to animal dander, urine, and sometimes saliva can cause allergic reactions to them. The symptoms include; sneezing, skin itching and irritation, itchy eyes rash and running nose.
Drug allergies are a bit tricky to identify because some drugs may have an adverse effect on the body that might look like allergies. They are complicated since they can be caused different substances in the drug causing a variety of symptoms. A true drug or medication allergy is caused brought about by a hypersensitive immune system that creates antibodies in response to a harmless medicine.
Prevention of allergies
The only way to prevent an allergy is by avoiding the substance you are allergic to. If it is dust, you need to ensure that you do not stay in dirty place. If it is a particular food type, you have to stop eating that kind of food. In case you are allergic to a particular drug, you should discontinue using that drug and go for a replacement drug.