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What Are Some Common Allergens?

What Are Some Common Allergens?

March 21, 2023
What Are Some Common Allergens?

More than 50 million Americans experience allergies every year, making allergies one of the country’s most common conditions. An allergy is a reaction from your immune system to a new and foreign substance called an allergen. An allergy is where your body reacts to something normally harmless, like pollen, dust or animal fur. The symptoms can be mild, but they can be severe for some people.

To manage allergies, you can use this prescription:

What Are Pollen Allergies And Common Symptoms?


Pollen is one of the most common triggers of seasonal allergies. Many people know pollen allergy as hay fever. Experts usually refer to pollen allergy as seasonal allergic rhinitis.

Everyone’s immune system is different, and pollen allergies can cause diverse signs and symptoms. It means that diagnosing an allergy can be difficult. If you think you may have an allergy, keeping a record of your symptoms can help you and your doctor to understand what is causing your symptoms.

Keep a diary that describes your symptoms and when and where they occur. Your journal could include information about whether your symptoms arise:

  • Inside your home, outside or both
  • For a short time or longer
  • At night, during the day or when you wake up
  • At a particular time of the year
  • Near animals
  • After you have been stung or bitten by an insect
  • After you have had a specific food or drink
  • After you have taken a particular medication, either prescription or over the counter from a pharmacy or supermarket
  • After you have taken herbal medicine

What Are Mold Allergies And Common Symptoms?

mold spores

Moulds are a type of fungus that exists almost everywhere in the world. The moulds inside our houses prefer dark and damp places and can be harmful to some people with immune systems that develop responses against mould.

People with mold allergies may develop itchy skin or rash, watery or itchy eyes, runny or itchy noses or, in more severe cases, breathing problems. There are thousands of different types of moulds. It’s possible to be allergic to only certain types of mould.

Mould allergy symptoms and signs resemble those of other types of respiratory allergies and may include the following:

  • Runny nose or nasal congestion
  • Wheezing
  • Itchy eyes and throat
  • Coughing and sneezing
  • Headache
  • Skin rash

What Are Dust Mite Allergies And Common Symptoms?

Dust mites are mostly found in the house and commonly trigger symptoms in people with asthma, allergic rhinitis or eczema, who are allergic to them. There are ways you can help to reduce the number of dust mites and their allergen, as well as to control allergic symptoms.

Dust mites belong to the same family as spiders and are so tiny you cannot see them without a microscope. They feed on discarded human skin, house dust, and other microscopic food sources such as pollen and fungal spores. Dust mites do not bite or sting. However, their bodies contain a potent allergen, and they also shed droppings and skin.

If you have a diagnosed allergy to dust mites, your symptoms will depend on whether your condition is asthma, eczema, hay fever or another allergic condition. Your doctor will work with you to help manage your symptoms, which may involve asthma or allergy medicine, and avoiding dust mites.

What Are Food Allergies And Common Symptoms?

Food allergy is an immune system reaction that occurs soon after eating a particular food. Even a tiny amount of the allergy-causing food can trigger signs and symptoms such as digestive problems, hives or swollen airways. In some people, a food allergy can cause severe symptoms, or even a life-threatening reaction is known as anaphylaxis.

An allergic reaction to a particular food may be uncomfortable but not severe for some people. An allergic food reaction can be frightening and even life-threatening for other people. Food allergy symptoms usually develop within a few minutes to 2 hours after eating the offending food. Rarely, symptoms may be delayed for several hours.

The most common food allergy signs and symptoms include:

  • Tingling or itching in the mouth
  • Hives, itching or eczema
  • Swelling of the lips, face, tongue and throat or other parts of the body
  • Wheezing, nasal congestion or trouble breathing
  • Abdominal pain, diarrhoea, nausea or vomiting
  • Dizziness, lightheadedness or fainting

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