Store-bought marshmallows won’t soothe a lingering cough because they lack marshmallow root extract. Doctors explain that Althaea officinalis contains a natural coating called mucilaginous, which helps reduce throat irritation quickly. Several studies back this remedy, though medical professionals recommend consulting a doctor before use.
How Marshmallow Root Extract Soothes Irritation
A standard bag of marshmallows will not treat a persistent cough. The key active ingredient is marshmallow root extract, derived from the plant Althaea officinalis, which has a history of medicinal use spanning over 2,000 years.
“The natural marshmallow root or plant has been shown to decrease throat irritation and coughing,” Dr. Bayo Curry-Winchell explained. She is a family medicine physician, health equity advocate, and TED Talk speaker.
The plant provides a soothing effect through its natural coating called mucilaginous. This sticky gelatin substance helps coat the throat and calm the cough reflex. Multiple scientific studies support this traditional remedy. A 2018 survey published in Complementary Medicine Research validated marshmallow root extract for treating a dry cough. A 2020 review in the same journal noted its effectiveness for sore throats and respiratory ailments.
Clinical Studies and Delivery Methods
A 2021 study featured in a German journal found that combining honey with marshmallow root extract prolonged the coating effect in the throat.
Another study from 2013, published in the Pakistan Journal of Pharmaceutical Sciences, evaluated lozenges as an effective delivery method. Lozenges treat irritated oropharyngeal mucosa and the associated dry cough.
Consumers can find the root in multiple forms at local grocery stores, Amazon, or Walmart. Options include drinking several cups of tea, consuming water mixed with 30 to 40 drops of tincture, or swallowing capsules containing the equivalent of 6 grams of powdered root in divided doses. The Mount Sinai medical system notes the root is generally safe, but Dr. Bayo Curry-Winchell and Dr. Michael Chichak advise speaking with a healthcare provider first due to potential supplement interactions.
Duration and Limitations of Relief
Marshmallow root extract works best for minor coughs and sore throats unaccompanied by major symptoms. The 2018 study observed that most participants felt results in roughly 10 minutes, making it a useful option before meetings or classes.
Dr. Michael Chichak, medical director at MEDvidi and a general practitioner with 13 years of experience, estimated the effect lasts about 10 to 20 minutes. Consuming the extract as a tea or lozenges can help sustain the suppression.
When to Consult a Physician for a Cough
Persistent coughing requires professional evaluation rather than at-home remedies. Dr. Michael Chichak emphasized that more complex medical problems demand thorough treatment when severe symptoms appear.
Patients should see a doctor if a cough lasts longer than three weeks, is accompanied by unexplained weight loss, occurs in someone with a weakened immune system, or coincides with chest pain.
Common Questions About Natural Cough Treatments
Does eating regular marshmallows help a cough?
No. Commercial marshmallows do not contain marshmallow root extract (Althaea officinalis), which provides the sticky mucilaginous coating needed to soothe throat irritation.
How fast does marshmallow root extract work?
Clinical studies like the 2018 research published in Complementary Medicine Research show that most participants experienced reduced irritation in approximately 10 minutes.
What is the best way to consume marshmallow root?
The root can be consumed as a tea, a liquid tincture mixed in water, capsules, or medicated lozenges. A 2021 study noted that adding honey can help prolong the throat-coating effect.
When should a persistent cough be evaluated by a doctor?
Dr. Michael Chichak advises seeing a physician if a cough persists for more than three weeks, or if it is accompanied by chest pain, unexplained weight loss, or a weakened immune system.
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