This week KMC Clinic will discuss about allergic reaction. Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people.
Your immune system produces substances known as antibodies. When you have allergies, your immune system makes antibodies that identify a particular allergen as harmful, even though it isn't. When you come into contact with the allergen, your immune system's reaction can inflame your skin, sinuses, airways or digestive system.
The severity of allergies varies from person to person and can range from minor irritation to anaphylaxis — a potentially life-threatening emergency. While most allergies can't be cured, treatments can help relieve your allergy symptoms.
Symptoms of a mild allergic reaction can include:
Severe allergic reactions can cause the following symptoms:
A severe and sudden allergic reaction can develop within seconds after exposure to an allergen. This type of reaction is known as anaphylaxis and results in life-threatening symptoms, including swelling of the airway, inability to breathe, and a sudden and severe drop in blood pressure.
If you experience this type of allergic reaction, seek immediate emergency help. Without treatment, this condition can result in death within 15 minutes.
How is an allergic reaction diagnosed?
The most commonly ordered types of allergy tests are:
A skin test is most valuable for diagnosing:
Allergy treatments include:
How can you prevent an allergic reaction?
Once you identify your allergy, you can:
You may not be able to avoid an allergic reaction completely, but these steps can help you prevent future allergic reactions.