Allergies | Causes and Reaction | 24-7labsnpr
What is an allergy? An allergy is an abnormal immune system response to an allergen, which is usually a benign substance. In response to allergen exposure, an allergic person's immune system produces antibodies that cause the production of substances like histamine. This can cause a range of symptoms such as sneezing, itching, hives, swelling, coughing, wheezing, or even anaphylaxis, which is a severe, potentially life-threatening allergic reaction. Allergies can be triggered by a wide range of substances like pollen, dust mites, animal dander, foods, insect stings, medications, etc. Some people are more prone to developing allergies than others, and the severity of an allergic reaction can vary depending on the individual and the specific allergen involved. Allergies can be diagnosed through skin tests, blood tests, or elimination diets. There are a variety of healthcare service providers who recommend a range of therapies, such as avoiding the allergen, using drugs to relieve th...