Postnasal drip explained: causes, symptoms, and remedies

When mucus runs down the back of your nose to your throat, it's called a postnasal drip. It may make you feel like you constantly want to clear your throat. It is one of the most common causes of a continuous cough.

Excess mucus may also give you a sore, scratchy throat.

Learn about causes and possible natural remedies for post nasal drip in this article.

Please note: a persistent cough or dry throat should always be checked out by your GP. Likewise, let your doctor know straight away if you notice blood in the mucus / sputum.

What causes postnasal drip? Common triggers and risk factors

Colds & Flu can cause sinusitis, which is an inflammation of the sinuses / Sinus infection (see respiratory tract infections)

Allergies (allergic postnasal drip)

Pregnancy

Certain medications, including hormonal birth control and blood pressure medications

Changing weather, cold temperatures, or really dry conditions

Deviated septum, the septum the wall that separates the two nostrils, which may be crooked

Foods that worsen postnasal drip

Certain foods (for example, spicy foods may aggravate the mucosal lining and trigger mucus flow). Histamine may also be an issue causing post nasal drip and some people may find relief from a low histamine diet. However, this diet is highly restrictive and best practiced under the guidance of a practitioner.

Misdiagnosis of post nasal drip

Postnasal drip symptoms can overlap with other conditions, leading to misdiagnosis.

Swallowing problems can cause a build-up of liquids in the throat, which can feel like a postnasal drip. These problems can sometimes occur in conditions such as gastroesophageal reflux disease (GORD), amongst others.

Please see our article on respiratory allergies for more info regarding reducing an immune response to common allergens which can cause a build-up of mucus.

Read on to find out other possible triggers and what may be a suitable option for you.

How do you stop postnasal drip naturally?

See our list of products which can help to clear up the airways:

Po-Ho Essential Oil Inhaler Stick: A super powerful combination of essential oils such as Eucalyptus, Caraway and Peppermint for the relief of nasal congestion.

Lungwort Complex Tincture 50ml[i]: Lungwort can help with respiratory issues such as congestion / excess mucus.

Radiance Drops with Burdock / Dandelion with Burdock (60 Caps)[ii]: Burdock can help with excess mucus.

Altitude Oil (10ml): a powerful antibacterial, antiviral and antiseptic oil blend which supports the immune system, and also helps you keep a clear head.

Other home remedies for postnasal drip:

Hot soup or a hot shower can help in acute cases of postnasal drip because the steam can help to thin the mucus and open the airways. It is also a good idea to ensure you are drinking enough water, so that you are not dehydrated, especially in times of illness such as colds and flu. Drinking water can also help to thin out the mucus. In the shower or bath try using a few drops of Eucalyptus oil, famous for its ability to clear congestion.

You can also try propping up your pillows at night so that the mucus doesn't collect in the back of the throat.

If your postnasal drip symptoms are persistent, please first see your GP. You can also see one of our nutritional therapists who may assist you in getting to the source of the problem, which can often be caused by allergies or digestive symptoms. We can also offer tailored product and supplement advice. Please book a consultation with our experts to find personalised natural solutions.

Testing options for persistent postnasal drip include:

Dietary allergies are a very common cause of postnasal drip. As mentioned previously, post-nasal drip can often be confused with symptoms of acid reflux. Testing will help to outline immune and/ or gut issues which may be causing symptoms.

• Food Sensitivity Test (Dietary Antigen Test): Food allergy is a common problem in children and adults. Many people present with adverse reactions to foods, which can manifest in many symptoms, not always connected to the digestive tract but also to respiratory systems or the skin.