Allergy is a hypersensitivity reaction of the immune system to a particular substance, known as an allergen. Allergens can be inhaled, ingested, injected or touched, and can come from a variety of sources, such as pollen, dust mites, pet dander, food or bees.
Effect of allergy
When an allergen comes into contact with the body, it triggers an immune response, which can cause a variety of symptoms, including sneezing, itching, watery eyes and difficulty breathing. In some cases, an allergy can also lead to a life-threatening condition known as anaphylaxis. There are a number of different treatment options available for allergies, including avoidance of the allergen, medication and immunotherapy.
Allergies and allergic diseases
An allergy is a hypersensitivity reaction of the immune system to a particular substance, known as an allergen. Allergens can be inhaled, ingested, injected or touched, and can come from a variety of sources, such as pollen, dust mites, pet dander, food or bees.
Symptoms
When an allergen comes into contact with the body, it triggers an immune response, which can cause a variety of symptoms, including sneezing, itching, watery eyes and difficulty breathing. In some cases, an allergy can also lead to a life-threatening condition known as anaphylaxis.
There are a number of different treatment options available for allergies, including avoidance of the allergen, medication and Allergic diseases are a group of conditions that are caused by an allergy. They include asthma, hay fever, food allergies and eczema.
What causes allergies?
Allergies are caused by the immune system overreacting to a substance that is usually harmless.
Immune system
The immune system is a complex network of cells and proteins that protect the body from infection and disease. When the immune system detects a foreign substance, known as an antigen, it produces antibodies to destroy it.
Inflammatory chemicals,
In people with allergies, the immune system overreacts to antigens, causing the release of inflammatory chemicals, such as histamine. These chemicals cause the symptoms of an allergic reaction.
Allergic reaction
The symptoms of an allergic reaction vary depending on the allergen and the individual. They can range from mild to severe, and can include.
Different type of allergies and allergic diseases
There are a number of different types of allergies and allergic diseases.
Asthma
This is a chronic condition that affects the airways. It is characterized by episodes of wheezing, breathlessness, chest tightness and coughing.
Hay fever
Hay fever, also known as allergic rhinitis, is a condition that causes inflammation of the nose and eyes. Symptoms include sneezing, itching, watery eyes and a runny nose.
Food allergies
This reactions to certain foods that are triggered by the immune system. Symptoms can include nausea, vomiting, diarrhea and difficulty breathing.
Eczema
This is a condition that causes the skin to become dry, itchy and inflamed.
Anaphylaxis
That is a severe and potentially life-threatening allergic reaction. In this situation we also go online allergy then its Symptoms can include difficulty breathing, swelling of the throat and a drop in blood pressure.
FAQ’S
What is an allergy?
An allergy is a hypersensitivity reaction of the immune system to a particular substance, known as an allergen. Allergens can be inhaled, ingested, injected or touched, and can come from a variety of sources, such as pollen, dust mites, pet dander, food or bees.
What are the symptoms of an allergic reaction?
The symptoms of an allergic reaction vary depending on the allergen and the individual. Allergy headache can range from mild to severe, and can include: sneezing, itching, watery eyes, a runny nose and difficulty breathing.
Conclusion
Allergies are a common condition that can cause a variety of symptoms. There are a number of treatment options available in healthtap, including avoidance of the allergen, medication and immunotherapy. If you think you may have an allergy, it is important to see a doctor for diagnosis and treatment.
