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DIY Herbal Throat Syrup

DIY Herbal Throat Syrup

Knowing how to make your own herbal throat syrup is a great way to be prepared this winter. As soon as you feel the first signs of a sore throat or cough, it’s easy to whip up a couple of days’ worth of syrup to help the medicine go down.

There are many herbs that have been used throughout history to treat a sore throat or a cough, many of which are now well researched, while others are still lacking in large-scale, human trials. A large number of these plants can be grown in the garden, foraged from the wild, or easily purchased locally, depending on your climate.

Medicinal Properties for a Sore Throat:

Most plants used for treating a sore throat contain mucilage. It is common to use boiling water to extract mucilage from a range of plants and seeds, however, the structure and potentially some of the medicinal benefits of mucilage can degrade with these high temperatures. The ideal temperature to extract mucilage is around 134 °F (56 °C), for one and a half hours. For this recipe, compounds present in flaxseed, thyme, and licorice root tend to naturally increase the pH of the extraction to the ideal range of between 7 – 8.

Other medicinal properties for a sore throat include the following;

  • Demulcents that soothe damaged mucus membranes.
  • Mucoprotectives protect the mucus membranes, often by forming a protective film of mucilage over them.
  • Expectorants that break up mucus in the airways to bring up phlegm easier and clear the airways.
  • Anti-spasmodic which relaxes muscles to reduce spasms and therefore reduces coughing fits.
  • Anti-inflammatory which reduces general irritation and inflammation.

Plants For a DIY Herbal Throat Syrup

Below is a list comprising of medicinal plants that combine well to make a warming herbal throat syrup. If you are unable to get your hands on any of the fresh ingredients, then dried herbs are also an option, but avoid using essential oil. Even though thyme essential oil and flaxseed oil are both edible, this syrup is water-based, so the essential oils won’t mix into the syrup.

Flaxseeds (Linum usitatissimum) are very high in mucilage so act as a good demulcent. The seeds contain compounds that increase the pH to approximately 7.5.DIY Herbal Throat Syrup - Flaxseed

Thyme (Thymus Vulgare) reduces muscle spasms such as those associated with a heavy cough and is an expectorant. The thymol and other compounds present in thyme make it anti-bacterial as well as anti-viral against several influenza strains, however, thymol is only slightly soluble in water. The solubility of thymol is marginally increased by increasing the pH of the solution, which other compounds found in thyme and flaxseed help to achieve.DIY Herbal Throat Syrup - Thyme

Licorice root (Glycyrrhiza glabra) is a proven demulcent, mucoprotective, expectorant, anti-inflammatory, and anti-spasmodic.DIY Herbal Throat Syrup - Licorice Root

White horehound (Marrubium vulgare) leaves and flowers are an all-round treatment for coughs due to their anti-spasmodic and strong expectorant properties.DIY Herbal Throat Syrup - White Horehound

Marshmallow (Althaea Officinalis) flowers, leaves, and roots are demulcent and protect the mucus membrane. It is commonly used for many pulmonary complaints, including irritable coughs.DIY Herbal Throat Syrup - Marshmallow

Coltsfoot (Tussilago farfara) leaves are a well-known relaxant and demulcent, which is often used for irritable coughs. It contains mucilage to help soothe a sore throat by forming a protective film on the mucus membrane. Some people may have reservations about using coltsfoot due to the pyrrolizidine alkaloids (PAs) which damage the liver when taken in either high doses or for more than 4 weeks.DIY Herbal Throat Syrup - Coltsfoot

PAs are highest in the flowers, so are usually avoided. But unless you are consuming coltsfoot by the plateful every day, the concentration of PAs is of minimal concern for adults, unless you already have a liver condition or are pregnant. There are more PAs in a glass of wine than a cup of coltsfoot tea.

Ingredients:

The quantities below make two days’ worth of throat syrup for 3 – 4 people.

  • 2 tablespoons of crushed flaxseedDIY Herbal Throat Syrup - TIngredients
  • 1 tablespoon of chopped thyme leaves
  • 1 tablespoon of chopped licorice root
  • 1 tablespoon of chopped white horehound or peppermint leaves
  • 1 tablespoon of chopped marshmallow root, leaves, or flowers
  • 1 tablespoon of chopped coltsfoot leaves
  • 2 cups of warm water
  • 1 – 2 tablespoons of honey

Method

Place the flaxseeds, licorice root, and marshmallow root in a pot on the stove and pour the warm water over them. Allow them to brew for 1 – 1.5 hours while roughly maintaining a temperature of around 134 °F (56 °C) and stirring occasionally. The water will turn yellowish and thicken slightly to become viscous when it’s ready.DIY Herbal Throat Syrup - Step 1

Next add the thyme, white horehound (or peppermint), and coltsfoot to the pot and brew for another 10 minutes, maintaining the same temperature. The water will take on a slight greenish tinge.DIY Herbal Throat Syrup - Step 2

Strain the brew and allow it to cool down to less than 104 °F (40 °C) before adding the honey for its antibiotic, antiseptic and soothing properties. Temperatures above this will destroy the medicinal properties of honey. Stir well until the honey has dissolved.DIY Herbal Throat Syrup - Step 3

Dosage:

Stir before use.

Take one tablespoon of DIY herbal syrup, at least 4 times a day.

Not suitable for pregnant women.

Shelf Life and Storage

This water-based remedy only uses honey as a mild preservative so this throat syrup only has a 2 – 3 day shelf-life and must be stored in the fridge.

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14 Comments

  • Geo Posted December 23, 2021 4:08 PM

    The photo you are showing for the cough syrup is Rosemary, not Thyme. So which one should be used? I would think Thyme, which in combination with Plantago, is what I have used.

    • Mare Posted December 26, 2021 11:08 PM

      I thought so too, but it’s just really the close up angle. I just picked some fresh thyme and so I compared it to the above photo.

    • Rose Posted January 8, 2022 7:26 AM

      The photo is Thyme…

  • Gordon C Posted December 23, 2021 4:53 PM

    The picture with thyme looks more like rosemary?

    • Mare Posted December 26, 2021 11:10 PM

      It’s just the angle and close up shot. I just picked fresh thyme from my garden and compared it to the above photo. Rosemary has long, thin leaves without serrations on the edge. It’s also a different variety of thyme.

    • Peter Posted January 4, 2022 6:02 PM

      The picture on the plate IS rosemary, your right. But single picture is thyme. Good spot,😎😎👍

  • Lauren Cieslinski Posted December 23, 2021 5:21 PM

    Could I just used flaxseed if that all I have or do I need all of these herbs for the DIY throat syrup?

    • The Lost Herbs Posted February 2, 2022 4:30 PM

      Hi Lauren,

      You can make a syrup with only Flaxseed as well. These seeds are quite effective against throat and bronchial tract discomfort.
      Here is an example of a recipe:
      – 1/2 lb. flax seeds
      – 1 cup cane sugar
      – 1 lemon
      – 1/2 lb. honey

      Put flax seeds in a bag; Put in a large stockpot. Pour over it 1 1/2 pints of water. let simmer down to 1/2 the amount; remove from fire and add other ingredients.
      Note for a smaller amount: Half of this recipe makes enough for 1 pint

      You can also just boil 2 tablespoons of flaxseeds in 1 cup of water until it becomes thick. Strain and add 3 tablespoons each of honey and lemon juice. The gooey gel that you get will help suppress cough.

      Many blessings and good health!

  • Carla Sikinger Posted December 25, 2021 2:09 AM

    What if your blood pressure is high? Should you not do the licorice?

    • Kristy N Posted December 27, 2021 1:14 AM

      Hi Carla,
      I’ve read licorice root should not be used by folks who have HBP due to excess water retention (that’s me), maybe it causes the body to hold it…? I had tea with licorice root a couple times, before making the connection. Ended up drinking some hawthorn berries tea (it acts as a diuretic) and afterwards I felt much better.
      Blessings,

  • Carol L Posted December 25, 2021 6:57 AM

    You don’t give the latin name for the licorice root. I have chinese licorice root, but it looks different from the photo (not necessarily an indicator, since I guess photos aren’t always correct anyway…) So please provide the correct species name for the licorice. Thank you

    • The Lost Herbs Posted February 2, 2022 4:41 PM

      Hi Carol,

      Thank you for your comment.
      The article has been updated already.

      There are about 14 known varieties, but only 4 of them are cultivated for commercial use as a sweetener. The most common is the Glycyrrhiza glabra, where the popular licorice flavoring is extracted. Glycyrrhiza uralensis, also known as Chinese licorice, is the flowering plant native to Asia. It is also used as a sweetener and in traditional Chinese medicine. Other licorice varieties are:
      • Glycyrrhiza glandulifera
      • Glycyrrhiza echinata
      • Glycyrrhiza astragalus (European variety)

      Many blessings and good health!

  • Kristy N Posted December 26, 2021 9:24 PM

    Thank you for the recipe—do you have a suggestion for a substitute for licorice root? It causes my blood pressure to go up, and I feel awful. 🙁

    • The Lost Herbs Posted February 2, 2022 4:46 PM

      Hi Kristy,

      I am sorry to hear that.
      You can simply remove the licorice from the recipe.
      Or some substitutes can be: Barberry, Eucalyptus, Garlic, Ginger, Lobelia, Red Clover, Saw Palmetto.

      Many blessings and good health!

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