Itchy Throat Causes: Why Your Throat Itches
Health ConditionsEar, Nose, & Throat

Why Does Your Throat Itch?

Why Does Your Throat Itch?
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Published on June 17, 2025
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An itchy throat — sometimes described as a tickle or scratch — is a universal problem. Although it may not keep you home in bed, it’s annoying and can make conversations and everyday activities a chore.

Throat irritation can be brought on by a range of factors. Getting to the root cause can help you find the right remedy, be more comfortable, and avoid future episodes.

Common Causes of Itchy Throat

An itchy throat can be the result of irritation in the upper airway, including your nose, mouth and throat. Often the clue to what’s causing the itch is in other symptoms.

Allergies

Allergies are one of the top reasons people experience throat irritation. When you’re exposed to allergens like pollen, dust mites, mold spores, or pet dander, your immune system may overreact and release natural chemicals called histamines. These histamines trigger inflammation and itchiness in your throat, nose, and eyes as well as other symptoms, like sneezing, a runny nose, watery eyes, and postnasal drip.

Even if you don’t have a full-blown immune response to an allergen, your body may still perceive it as foreign and treat it as something it needs to get rid of or fight against — and that could cause an itch or irritation leading to persistent throat clearing.

Acid Reflux

GERD (gastroesophageal reflux) is a condition in which stomach acid flows back up into the esophagus, which can irritate the throat over time. Acid reflux may cause a persistent itchy or sore throat, especially after you eat certain foods.

Other symptoms of GERD include heartburn, a sour taste in the mouth, and chronic coughing. If your throat feels itchy most mornings or after lying down, GERD may be to blame.

Another, lesser-known form of reflux called laryngopharyngeal reflux (LPR) could also be causing your itchy throat. LPR is when stomach acid travels all the way into your throat and causes itchy throat and chronic throat clearing. Unlike with GERD, you may not have typical acid reflux symptoms like heartburn.

Infections

Viral infections like colds and COVID-19 can lead to a scratchy or sore throat; for some people, it may be one of the first symptoms. The irritation is caused by postnasal drip, which is when mucus from the nose and sinuses drips down the back of your throat.

Environmental Irritants

Sometimes an itchy throat is a reaction to lack of humidity. Dry indoor air, especially in winter when heating systems are on full blast, can strip moisture from your throat and leave it feeling parched and itchy.

Breathing in air pollution caused by chemical fumes, car emissions, and refineries can irritate your throat. If you live in an area with poor air quality, this could be causing your issues.

Fumes from cleaning products, paint, wood stain or construction supplies can be irritating to the eyes, nose, and throat. The same goes for smoke from cigarettes, cigars, and vapes, which contain hundreds of chemicals that could trigger a reaction.

Less Common Causes of Itchy Throat

Although less frequent than the main causes of itchy throat, the following issues can cause throat irritation.

Throat Tension and Strain

People who talk or sing a lot — teachers, public speakers, or performers — may experience throat itchiness due to vocal strain. Constant use of your voice without proper hydration or rest can lead to mild inflammation and discomfort.

Food Sensitivities

If your throat gets itchy after you eat fresh apples, melons, nuts, or other raw fruits and vegetables, you could have oral allergy syndrome (OAS). In people with OAS, the immune system mistakes proteins in certain uncooked fruits, vegetables, and nuts for pollen. This causes localized itching in the mouth and throat.

Medication Side Effects

Some medications may also lead to a dry or scratchy throat as a side effect. If you’ve noticed an uptick in throat irritation when you started taking one of the following medications, check in with your doctor.

  • Angiotensin-converting enzyme (ACE) inhibitors, medications used to treat high blood pressure, heart failure, and kidney disease
  • Calcium channel blockers, a treatment for arrhythmias (irregular heart rhythms) and can also help lower blood pressure
  • Fentanyl, an opioid medication that’s used in hospitals for pain relief or as anesthesia during procedures (it’s also used illegally as a nonmedical drug)
  • Latanoprost, a common treatment for glaucoma
  • Sitagliptin, used to manage type 2 diabetes

How to Relieve an Itchy Throat

The best treatment for itchy throat depends on what’s causing it. If you’re unsure, keep track of your symptoms and discuss them with your healthcare provider.

For Itchy Throat Caused by Allergies

  • Antihistamines (like cetirizine or loratadine) can help block histamines and reduce inflammation.
  • Nasal sprays or steroid medications may reduce congestion and postnasal drip.

Viral Infections

  • Get plenty of rest and fluids.
  • Use acetaminophen or ibuprofen to ease discomfort and reduce fever.
  • If you are eligible, consider antiviral medications for illnesses like flu and COVID-19.

Environmental Factors

  • Use a humidifier to add moisture to dry indoor air.
  • Try to avoid smoke, strong perfumes, or pollutants.

Acid Reflux

  • Avoid trigger foods (spicy, acidic, or fatty meals).
  • Use antacids or acid reducers and eat smaller meals.

Home Remedies

  • Sip warm teas with honey to soothe the throat lining.
  • Gargle with saltwater to reduce inflammation and kill bacteria.
  • Cough drops may help reduce irritation.

When to See a Doctor

While an itchy throat is usually no big deal, some signs mean it’s time to check in with a healthcare provider.

  • The itchiness lasts more than two weeks or keeps coming back.
  • You have trouble breathing or swallowing.
  • Your throat irritation is accompanied by fever, swelling, joint pain, or a rash.
  • You're dealing with chronic throat irritation, especially if linked to heartburn or coughing.

The Takeaway

  • An itchy throat can be caused by allergies, infections, dry air, irritants, or even acid reflux.
  • Identifying the trigger helps you find the right remedy, whether it’s allergy medication or changing your diet.
  • See a doctor if symptoms persist, worsen, or come with other concerning signs.

Resources We Trust

EDITORIAL SOURCES
Everyday Health follows strict sourcing guidelines to ensure the accuracy of its content, outlined in our editorial policy. We use only trustworthy sources, including peer-reviewed studies, board-certified medical experts, patients with lived experience, and information from top institutions.
Resources
  1. Seasonal Allergies. Yale Medicine.
  2. Gastroesophageal Reflux Disease (GERD). Mayo Clinic. April 23, 2025.
  3. Laryngopharyngeal Reflux (LPR). Cleveland Clinic. August 20, 2023.
  4. Why Your Throat Tickles — And How to Stop It. Cleveland Clinic. February 23, 2024.
  5. Health Effects of Ozone Pollution. United States Environmental Protection Agency. March 13, 2025.
  6. Oral Allergy Syndrome. American Academy of Allergy, Asthma and Immunology. January 10, 2024.
  7. Sore Throat: Diagnosis. Mayo Clinic. April 12, 2025.
  8. Sore Throat. Mayo Clinic. April 12, 2025.
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Allison Buttarazzi, MD

Allison Buttarazzi, MD

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Allison Buttarazzi, MD, is board-certified in internal medicine and lifestyle medicine, and is a certified health and well-being coach. In her primary care practice, Dr. Buttarazzi focuses on lifestyle medicine to help her patients improve their health and longevity, and her passion is helping patients prevent and reverse chronic diseases (like heart disease, high blood pressure, and diabetes) by improving their lifestyle habits.

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