Mucus-Relieving Herbs in Winter: Natural Medicine Approaches for Colds

When the days grow shorter, temperatures drop, and the first scratchy throat begins, humans have turned to nature’s treasures for millennia. Winter was already a season for our ancestors in which herbs, roots, and resins played a special role in daily life—not as medicines in the modern sense, but as companions that traditionally supported physical well-being during the cold season. These traditions remain alive today and are experiencing a renaissance, especially in the field of natural medicine. Those who study the herbal knowledge of Hildegard of Bingen or the monastic medicine of the Middle Ages find an astonishing wealth of plant knowledge that can still inspire us today.

What the Cold Does to Our Body—and Why Mucus Matters

Winter places special demands on the human body. Dry heated air, fluctuating temperatures when moving between cold outdoor air and heated indoor spaces, as well as less movement and light—all these are typical accompanying factors of the cold season. In natural medicine, mucus is attributed an ambivalent role: on the one hand, it is a natural protective film of the mucous membranes; on the other hand, excessive mucus production can noticeably impair general well-being. Who doesn’t know it—a stuffy head, thick mucus in the airways, the feeling of not being able to breathe properly.

In humoral pathology, the medical worldview of the Middle Ages and the basis of Hildegard’s thinking, mucus as a bodily fluid played a central role. The so-called phlegm was considered one of the four bodily humors and was associated with the element water and the cold, damp season. An excess of phlegm was traditionally linked to sluggishness, heaviness, and the very symptoms we now recognize as typical cold symptoms. Monastic medicine had clear herbal responses to these conditions, passed down through generations. Hildegard von Bingen products

What is particularly interesting is that many of the herbs historically used to support mucus-laden airways still play a role in modern natural medicine. The connection between traditional knowledge and contemporary interest in natural lifestyles makes this topic so vibrant. It is not about replacing modern medicine but understanding traditional plant knowledge as a complement to everyday life—as a ritual, as self-care, as consciously adding moments of nature to an often hectic lifestyle.

In monastic medicine, winter was considered the season of phlegm—that is, mucus. Herbs like thyme, plantain, and horehound were traditionally valued as companions through the cold season and remain a fixed part of herbal knowledge in natural medicine today.

Hildegard’s Herbal Pharmacy: The Most Important Mucus-Resolving Plants of Monastic Medicine

Hildegard of Bingen (1098–1179) left behind in her works “Physica” and “Causae et Curae” an impressive compendium of the plant knowledge of her time. As an abbess and scholar, she possessed extensive botanical knowledge, which she systematically recorded and which still serves as a valuable historical source. Especially for the respiratory tract and winter, Hildegard named a number of plants regularly used in monastic practice.

“Hyssop is warm and dry. Whoever suffers from chest ailments and has mucus should boil hyssop in pure water or wine and drink it often, and the mucus in their chest will be reduced.” – Hildegard von Bingen, Physica (ca. 1150–1160), translated from Medieval Latin

Hyssop—today known mostly as a culinary herb—was one of the central plants for the respiratory tract in monastic medicine. Hildegard valued it for its warming properties, which in the humoral pathological system were ideal against the cold, damp phlegm. The practice of boiling herbs in water or wine and drinking the decoction essentially corresponds to what we know today as herbal tea—a ritual that still has its place in modern daily life.

Equally important to Hildegard was thyme, which she described as warming and strengthening. It appeared in many monastic recipes and was used both internally as a decoction and externally in the form of steam inhalations. The inhalative use of herbal steam—today popular again as a facial steam bath—thus has a very long tradition. Sage and lavender also appear in Hildegard’s writings in connection with respiratory complaints, always embedded in the holistic understanding of body, soul, and nature. Hildegard von Bingen products

These herbs from monastic medicine were traditionally valued for mucus and colds:

• Thyme (Thymus vulgaris): Valued for centuries in monastic medicine and traditionally used for respiratory complaints. Hildegard described it as a warming herb that counteracts cold phlegm.
• Hyssop (Hyssopus officinalis): Historically one of the most important medieval herbs, explicitly mentioned by Hildegard for the respiratory tract. Traditionally used as a tea infusion or steam inhalation.
• Plantain (Plantago lanceolata): Traditionally used for centuries as a companion for mucus-laden airways. The plant was known in the folk medicine of many European cultures.
• Horehound (Marrubium vulgare): Historically known as the “cough herb” of monasteries, traditionally prepared as a tea infusion and part of the inherited European herbal knowledge.
• Licorice root (Glycyrrhiza glabra): Valued already in ancient medicine and later in monastic medicine for the respiratory tract. Traditionally used as tea or extract and gives mixtures a pleasantly sweet note.
• Sage (Salvia officinalis): “Why should a person die who has sage growing in their garden?”—a famous medieval saying. Traditionally used for throat and respiratory tract.

Traditional Preparations: Tea, Steam, and More

Knowledge of mucus-resolving herbs is only half as valuable without knowing the proper preparation. In natural medicine and especially in monastic medicine, the form of preparation was by no means arbitrary—it was part of a holistic ritual that addressed both body and mind. Herbal tea is the best-known and most accessible form. But steam inhalations, chest compresses, neck wraps, and herbal honeys also played an important historical role and still have their place in everyday natural medicine today.

How to prepare herbal tea properly—what matters:

For an optimal infusion, most leaf herbs like thyme, sage, or peppermint are poured over with freshly boiled but slightly cooled water (about 90°C) and covered to steep for 5–8 minutes. Roots and harder plant parts like licorice root or ginger are ideally prepared as a decoction: briefly boiled, then steeped for 10–15 minutes. Covering during steeping is important to prevent essential oils from escaping—these are traditionally an essential part of the valued herbal aroma.

Steam inhalation is another time-honored method known in the folk medicine of many cultures. Herbs—especially those with essential oils like thyme, eucalyptus, or peppermint—are poured over with hot water, and the rising steam is inhaled under a towel. This method has been passed down for generations and remains a fixed part of natural medicine recommendations for winter. Caution is important with children, as hot steam with essential oils is not suitable for small children.

A less well-known but historically significant preparation is herbal honey. By soaking fresh or dried herbs in honey for several weeks, an aromatic, concentrated extract is created, traditionally taken by the spoonful. Thyme honey and sage honey are classic examples that can still be easily made at home today. Honey itself was considered a valuable food in monastic medicine, to which Hildegard of Bingen attributed special importance—it was regarded as warm and soothing for the body. Hildegard von Bingen products

Steam inhalation with thyme or peppermint is one of the oldest preserved methods to support the respiratory tract in winter—simple, inexpensive, and deeply rooted in European herbal tradition.

Bitter Herbs as Winter Companions: The Underrated Role of Bitters

When thinking of colds and respiratory issues, bitters don’t always come to mind immediately. Yet they play a remarkable role in natural medicine and especially in the tradition of monastic medicine as winter companions. Bitter plants like gentian, yarrow, or centaury were historically valued not only for digestion but also regarded as strengtheners of the entire organism during the cold season. The principle “bitter is balm” runs like a red thread through European herbal tradition. BitterKraft Original

In the specialist literature on Hildegard medicine (e.g., Wighard Strehlow: “Hildegard von Bingen – The Healing Power of Bitter Herbs,” 2003), it is noted that Hildegard considered bitter plants especially valuable for constitution in winter and described them as “cleansers” of the body—a concept close to the modern natural medicine view of bitters as tonics.

Interestingly, natural medicine often links the topic of mucus and respiratory tract with the concept of inner balance. A weakened organism—which from a natural medicine perspective can also result from an unbalanced diet, lack of exercise, or stress—is considered more susceptible to winter ailments. Bitter herbs are traditionally understood in this context as companions that can support general well-being and help strengthen the body during the season of phlegm. They do not oppose mucus-resolving herbs but complement them meaningfully. Immune system products

In practical application, this means: those who regularly drink a tea of thyme and horehound in winter can wonderfully complement it with a small bitter ritual. A few drops of a high-quality herbal bitter before meals, a tea of yarrow and peppermint in the evening—this creates a holistic, natural medicine-inspired routine that does not target individual symptoms but considers overall well-being. This corresponds to the basic principle of traditional natural medicine: not removing but adding. Not treating in isolation but accompanying holistically.

Bitter herbs and mucus-resolving herbs do not exclude each other—they complement each other in the sense of holistic natural medicine. The winter routine of thyme tea and herbal bitters corresponds to a traditional monastic medicine concept aimed at balancing the entire organism.

Practical Winter Rituals: How to Integrate Herbal Knowledge into Everyday Life

The most valuable herbal knowledge is of little use if it gathers dust on a bookshelf. The real art lies in everyday integration—and here monastic medicine still has something crucial to teach. In monasteries, herbal use was not an extraordinary event but part of daily life. The herb garden, the monastery kitchen, the home pharmacy—all were part of a rhythmic daily routine that actively involved nature and its seasons. We can rediscover this rhythm today.

A simple start is setting up a small winter pharmacy at home: dried thyme, plantain, horehound, licorice root, and hyssop as basic supplies for cold season. Add a good herbal bitter and a high-quality thyme honey. These ingredients can be combined into an individual cold season routine that begins in the morning with a warming tea and ends in the evening with a soothing sage steam bath. The ritual itself has its own value—it signals to the body: “I take care of myself.” Sleep and relaxation products

For the tea blend, a classic combination deeply rooted in European herbal tradition is recommended:

Traditional winter herbs for a homemade cold season tea blend:

• Thyme: The backbone of every classic respiratory herbal tea blend. Traditionally used as the main herb, it gives the blend its characteristic warmth.
• Plantain: Ideally complements thyme and has been a fixed part of traditional cold herbal blends in European folk medicine for centuries.
• Licorice root: Gives the blend a pleasant natural sweetness and is traditionally used to round off respiratory herbal teas.
• Horehound: Historically known as the “cough herb,” it adds a slightly bitter note and a long folk medicine tradition to the blend.
• Ginger: Not part of Hildegard’s original repertoire but known and valued in Europe since the Middle Ages through the spice trade. Adds warmth and spiciness to the blend.

Besides tea, steam inhalation also deserves a fixed place in the winter ritual. Just two to three times a week, a short herbal steam bath can pleasantly support general well-being during cold season. Those who continue the tradition of monastic medicine can also try a simple chest tea compress: a cloth soaked in warm thyme tea, wrung out, placed on the chest, and covered with a dry towel is an ancient form of external herbal application that remains alive in many care traditions today. Immune system products

In the end, it is above all awareness that counts: perceiving the seasons, observing one’s own body, and taking care of one’s well-being early—not only when already in the middle of a full-blown cold—with small, natural rituals. This is the real lesson of monastic medicine and the herbal knowledge of Hildegard von Bingen: not waiting until something breaks down, but continuously and lovingly maintaining balance. Nature has offered its remedies for millennia—we just have to use them.