Identifying and Managing Common Allergy Symptoms

Allergy symptoms result from the immune system's reaction to allergens, causing discomfort and health issues.
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Healthcare | Immune Response | Environmental Allergens | Allergy Management | Allergen Avoidance | Immune System Reactions
Prepared by Lee Cheng, reviewed by Dr. Helena Rodriguez

Allergy Symptoms FAQ


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What are the different types of allergy symptoms?

Allergy symptoms and their severity vary from person to person, and more than one substance can trigger an allergic reaction in someone. There are mild, moderate, and severe categories of allergy symptoms. This article will look at mild, moderate, and severe allergy symptoms and how to tell if it's an allergy or sickness causing your symptoms.

What is an allergic reaction?

An allergy is where your body reacts to something that's normally harmless like pollen, dust or animal fur. The symptoms can be mild, but for some people they can be very serious. Things that cause allergic reactions are called allergens.

What are the symptoms of a food allergy?

Food allergies develop when your body releases a specific antibody to a particular food. An allergic reaction occurs within minutes of eating the food, and symptoms can be severe. Symptoms may include: Itching all over your body (generalized pruritus). Itching in just one certain part of your body (localized pruritus). Nausea and vomiting. Hives.

What are the symptoms of an allergic reaction?

Allergies occur when your immune system mistakenly triggers an allergic reaction to an allergen. Allergic reaction symptoms include congestion, watery eyes, a runny nose, vomiting and, in severe cases, anaphylaxis. Allergies can be incredibly frustrating if you don’t know what’s triggering your immune system.

How do I know if I have an allergy?

Your pharmacist can help determine whether it’s likely you have an allergy. If your allergy is particularly severe or it’s not clear what you’re allergic to, the pharmacist may advise you see your GP who may refer you to an allergy specialist for testing and advice about treatment. Read more about allergy testing.

Allergy Symptoms References

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