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How to Differentiate Between Flu and Allergies

During certain times of the year, mainly spring and fall, people can be plagued by a number of symptoms, many of which cause confusion between the flu and Allergies. It is important to remember that there are symptoms which occur in one and not the other.

Flu Symptoms

The flu is caused by a viral infection. It is chiefly characterized by high fever, chills, coughing, and nausea. Treatment for the flu includes time and symptom control, including decreasing the fever. Individuals with more severe symptoms are sometimes hospitalized.

Allergy Symptoms

Allergies are caused by an allergic reaction to an environmental factor, such as pollen or mold. It is chiefly characterized by itchy, watery eyes and a runny nose. Treatment for allergies includes symptom control and the use of over-the-counter medications. Severe cases are sometimes treated with allergy shots and prescription medications.

The Difference

The most telling differences between flu and allergy symptoms are the presence of a fever and any itchiness. When a person has the flu, it is accompanied by a high fever which is not present with allergies. When a person has allergies, there is itchiness which is not present with the flu.

Learning to differentiate between the symptoms of the flu and allergies can help make treatment selections easier. If there is ever any doubt, however, as to which condition is being experienced, it is best to consult a physician to obtain the most accurate diagnosis.

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13y ago

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Is it a cold the flu or allergies?

The flu (full name influenza) is caused by a virus. You can differentiate between an allergic reaction like hay fever and infection with the flu by watching for fever, hot and cold chills and muscle aches - all of these are common with the flu but uncommon in an allergic reaction.


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What are the common symptoms of allergies, and how can one differentiate between a fever due to allergies and a fever caused by other factors?

Common symptoms of allergies include sneezing, runny nose, itchy eyes, and skin rashes. To differentiate between a fever due to allergies and a fever caused by other factors, one can consider if the fever is accompanied by other allergy symptoms, such as congestion or itching. Allergy-related fevers are usually lower in temperature and may fluctuate throughout the day. Consulting a healthcare provider for proper diagnosis and treatment is recommended.


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How can I tell the difference between the flu and just a cold?

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