Allergies
How Symptoms Develop?
When an allergic person comes in contact with an allergen, the immune system produces an antibody, called immunoglobulin E (IgE), to react to the specific allergen. When the same allergen tries to enter the body again, the immune system responds, causing the person to experience allergy symptoms. Cells in the body also release histamine and other chemicals to fight off the allergen, which can cause itching, swelling, mucus production, hives, rashes and other symptoms.The type of reaction an allergic person has depends on how the immune system's antibodies reacts to the specific allergen, the amount of the allergen that enters the body, and the type of allergen it is. Therefore, allergic reactions can be mild or very serious.
When an allergic person comes in contact with an allergen, the immune system produces an antibody, called immunoglobulin E (IgE), to react to the specific allergen. When the same allergen tries to enter the body again, the immune system responds, causing the person to experience allergy symptoms. Cells in the body also release histamine and other chemicals to fight off the allergen, which can cause itching, swelling, mucus production, hives, rashes and other symptoms.The type of reaction an allergic person has depends on how the immune system's antibodies reacts to the specific allergen, the amount of the allergen that enters the body, and the type of allergen it is. Therefore, allergic reactions can be mild or very serious.
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Many people are familiar with the standard allergy symptoms such as itchy, watery eyes or sneezing, but there are other symptoms that can be caused or aggravated by allergies. Remember, allergies can affect a lot more than just your eyes, ears, nose, and throat.
Listed here are the some of the symptoms associated with allergies. Many of these symptoms are discussed on the Allergies Forum. Click on one of the symptoms and it will take you to a discussion on the Allergies Forum pertaining to that symptom.
Who Becomes Allergic?
Although allergies are more common in children, people can develop allergies for the first time at any age. People in their 50s or 60s who have never had allergies during their lives, can suddenly develop allergic reactions.
Age, race and gender are not factors in who develops allergies. Allergies tend to run in families, so there may be a genetic component, but environmental factors also play a role. Some studies suggest that hormones and stress can play a role in someone developing new allergies.
Although allergies are more common in children, people can develop allergies for the first time at any age. People in their 50s or 60s who have never had allergies during their lives, can suddenly develop allergic reactions.
Age, race and gender are not factors in who develops allergies. Allergies tend to run in families, so there may be a genetic component, but environmental factors also play a role. Some studies suggest that hormones and stress can play a role in someone developing new allergies.
