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Can you tell if it’s a cold or signs of allergies? Learn about five common allergy symptoms and how to get relief. For many people, allergy symptoms come on quickly when your immune system overreacts to normally harmless substances called allergens. Your body releases a chemical called histamine, and you might start to notice allergy warning signs like the ones below.

Runny nose

A runny nose is one of the most common allergy symptoms in adults and children. When allergens enter your nose, the membrane swells and presses fluid out of small blood vessels in your nasal passages – typically a thin, clear liquid. To help reduce symptoms, drink plenty of fluids and stay hydrated.


Although often not considered a severe allergy symptom, sneezing can cause friends and coworkers to keep their distance. Your body’s reaction to histamine includes itchiness and swelling inside your nose and throat. When these membranes become irritated, your brain tells your chest to contract and you sneeze to remove the irritants. To reduce sneezing fits, avoid allergy triggers or try relieving other symptoms causing irritation in your nose and throat.

Itchy, watery eyes

Many allergens are airborne and come into direct contact with your eyes. That’s why more than 80% of people with allergies experience itchy, watery, or teary eyes. If they already feel irritated, help soothe them by washing your face and then placing a cool, moist washcloth over your eyes.

Itchy nose or throat

The membranes in both your nose and throat are sensitive to allergens you breathe in and can become irritated. Itchy nasal passages or an itchy throat can also be a reaction to too much histamine in your system, or the result of mucus drain from a runny nose. To help reduce this itchiness, try a throat lozenge.

Sinus congestion

If your allergies include upper respiratory symptoms – sneezing and an itchy or runny nose – your sinuses might become swollen and blocked. Many people feel the blockage in their face, especially under the eyes, and find it difficult to breathe through their nose. Learn more about decongestants, and try ZYRTEC-D® to powerfully clear your blocked nose and relieve your other allergy symptoms.

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ZYRTEC® provides strong relief day after day for common allergy symptoms. Learn more and find the product that’s best for you and your family.

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