Allergies are a common chronic condition in which the immune system reacts to substances that are typically harmless. Reactions can range from a rash to hives to severe anaphylaxis.
Common types:
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Hay fever (allergic rhinitis): It is triggered by airborne allergens such as pollen. Symptoms include sneezing, runny or stuffy nose, itchy or watery eyes, and coughing.
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Asthma: Allergens, infections, or irritants can trigger wheezing, shortness of breath, chest tightness, and coughing.
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Allergic bronchitis: It is a reaction in the bronchial tubes that can lead to coughing, mucus production, and chest discomfort.
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Food allergies: These can be triggered by common food allergens such as nuts, eggs, milk, soy, wheat, fish, and shellfish.
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Insect sting allergies: These can be triggered by stings or bites, such as from bees, wasps, or ants. Symptoms can include swelling, hives, difficulty breathing, and anaphylaxis.
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Medication allergies: Antibiotics, non-steroidal anti-inflammatory drugs (NSAIDs), or aspirin, can trigger symptoms
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Latex allergy: This can be triggered by exposure to latex-containing products, such as gloves or balloons. Symptoms may include skin reactions or respiratory problems.
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Contact dermatitis: This is when contact with environmental allergens can cause redness, itching, and a rash.
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Atopic dermatitis (eczema): This is chronic skin condition characterized by red, itchy, and inflamed skin, often related to allergic triggers.