Antiseptic and disinfectant plants
Comfrey (Symphytum officinale) is a commonly used herbal medicine with a long and proven history in the treatment of various complaints. The root and the leaves are used, the root being more active, and they can be taken internally or used externally as a poultice. Comfrey is especially useful in the external treatment of cuts, bruises, sprains, sores, eczema, varicose veins, broken bones etc, internally it is used in the treatment of a wide range of pulmonary complaints, internal bleeding etc. The plant contains a substance called ‘allantoin’, a cell proliferant that speeds up the healing process This substance is now synthesized in the pharmaceutical industry and used in healing creams. The root and leaves are anodyne, astringent (mild), demulcent, emollient, expectorant, haemostatic, refrigerant, vulnerary. Some caution is advised, however, especially in the internal use of the herb. External applications and internally taken teas or tinctures of the leaves are considered to be completely safe, but internal applications of tablets or capsules are felt to have too many drawbacks for safe usage. See also the notes above on toxicity. The leaves are harvested in early summer before the plant flowers, the roots are harvested in the autumn. A homeopathic remedy is made from the fresh root, harvested before the plant flowers. This has a very limited range of application, but is of great benefit in the treatment of broken bones and eye injuries.
Myrtle (Myrthus communis) The leaves are aromatic, balsamic, haemostatic and tonic. Recent research has revealed a substance in the plant, the myrthol, that has an antibiotic action. The active ingredients in myrtle are rapidly absorbed and give a violet-like scent to the urine within 15 minutes.
The plant is taken internally in the treatment of urinary infections, digestive problems, vaginal discharge, bronchial congestion, sinusitis and dry coughs. In India it is considered to be useful in the treatment of cerebral affections, especially epilepsy.
Externally, it is used in the treatment of acne (the essential oil is normally used here), wounds, gum infections and haemorrhoids. The leaves are picked as required and used fresh or dried. An essential oil obtained from the plant is antiseptic. It contains the substance myrtol – this is used as a remedy for gingivitis. The oil is used as a local application in the treatment of rheumatism. The fruit is carminative. It is used in the treatment of dysentery, diarrhoea, haemorrhoids, internal ulceration and rheumatism
Oregano (Origanum vulgare) has been used as a culinary and medicinal herb for thousands of years. It has a beneficial effect upon the digestive and respiratory systems and is also used to promote menstruation. It should not be used medicinally by pregnant women though it is perfectly safe in small amounts for culinary purposes. The leaves and flowering stems are strongly antiseptic, antispasmodic, carminative, cholagogue, diaphoretic, emmenagogue, expectorant, stimulant, stomachic and mildly tonic. The plant is taken internally in the treatment of colds, influenza, mild feverish illnesses, indigestion, stomach upsets and painful menstruation. It is strongly sedative and should not be taken in large doses, though mild teas have a soothing effect and aid restful sleep. It should not be prescribed for pregnant women. Externally, oregano is used to treat bronchitis, asthma, arthritis and muscular pain. The plant can be used fresh or dried – harvest the whole plant (but not the roots) in late summer to dry and store for winter use. Oregano is often used in the form of an essential oil that is distilled from the flowering plant. A few drops of the essential oil, put on cotton wool and placed in the hollow of an aching tooth, frequently relieves the pain of toothache. This plant is one of the best natural antiseptics because of its high thymol content. The essential oil is used in aromatherapy to treat the same kinds of complaints that the herb is used for.
Rosemary is commonly grown in the herb garden as a domestic remedy, used especially as a tonic and pick-me-up when feeling depressed, mentally tired, nervous etc. Research has shown that the plant is rich in volatile oils, flavonoids and phenolic acids, which are strongly antiseptic and anti-inflammatory. Rosmarinic acid has potential in the treatment of toxic shock syndrome, whilst the flavonoid diosmin is reputedly more effective than rutin in reducing capillary fragility. Rosmarol, an extract from the leaves, has shown remarkably high antioxidant activity. The whole plant is antiseptic, antispasmodic, aromatic, astringent, cardiac, carminative, cholagogue, diaphoretic, emmenagogue, nervine, stimulant, stomachic and tonic. An infusion of the flowering stems made in a closed container to prevent the steam from escaping is effective in treating headaches, colic, colds and nervous diseases. A distilled water from the flowers is used as an eyewash. This remedy should not be prescribed for pregnant women since in excess it can cause an abortion. An essential oil distilled from the stems and leaves is often used medicinally, that distilled from the flowering tops is superior but not often available. The oil is applied externally as a rubefacient, added to liniments, rubbed into the temples to treat headaches and used internally as a stomachic and nervine. The essential oil is used in aromatherapy.
Tasmanian Blue Gum (Eucalyptus globulus) Eucalyptus leaves are a traditional Aboriginal herbal remedy. The essential oil found in the leaves is a powerful antiseptic and is used all over the world for relieving coughs and colds, sore throats and other infections. The essential oil is a common ingredient in many over-the-counter cold remedies. The adult leaves, without their petioles, are antiperiodic, antiseptic, aromatic, deodorant, expectorant, febrifuge, hypoglycaemic and stimulant]. The leaves, and the essential oil they contain, are antiseptic, antispasmodic, expectorant, febrifuge and stimulant. Extracts of the leaves have antibacterial activity. The essential oil obtained from various species of eucalyptus is a very powerful antiseptic, especially when it is old, because ozone is formed in it on exposure to air. It has a decided disinfectant action, destroying the lower forms of life. The oil can be used externally, applied to cuts, skin infections etc, it can also be inhaled for treating blocked nasal passages, it can be gargled for sore throat and can also be taken internally for a wide range of complaints. Some caution is advised, however, because like all essential oils, it can have a deleterious effect on the body in larger doses. The oil from this species has a somewhat disagreeable odour and so it is no longer used so frequently for medicinal purposes, other members of the genus being used instead. An oleo- resin is exuded from the tree. It can also be obtained from the tree by making incisions in the trunk. This resin contains tannin and is powerfully astringent, it is used internally in the treatment of diarrhoea and bladder inflammation, externally it is applied to cuts etc. The essential oil is used in aromatherapy.
Common thyme (Thymus vulgaris) has a very long history of folk use for a wide range of ailments. It is very rich in essential oils and these are the active ingredients responsible for most of the medicinal properties.
In particular, thyme is valued for its antiseptic and antioxidant properties, it is an excellent tonic and is used in treating respiratory diseases and a variety of other ailments. The flowering tops are anthelmintic, strongly antiseptic, antispasmodic, carminative, deodorant, diaphoretic, disinfectant, expectorant, sedative and tonic. The plant is used internally in the treatment of dry coughs, whooping cough, bronchitis, bronchial catarrh, asthma, laryngitis, indigestion, gastritis and diarrhoea and enuresis in children. It should not be prescribed for pregnant women.
Externally, it is used in the treatment of tonsillitis, gum diseases, rheumatism, arthritis and fungal infections. The plant can be used fresh at any time of the year, or it can be harvested as it comes into flower and either be distilled for the oil or dried for later use. Thyme has an antioxidant effect, thus regular use of this herb improves the health and longevity of individual body cells and therefore prolongs the life of the body.
The essential oil is strongly antiseptic. The whole herb is used in the treatment of digestive disorders, sore throats, fevers etc. The essential oil is one of the most important oils used in aromatherapy. It is used especially in cases of exhaustion, depression, upper respiratory tract infections, skin and scalp complaints etc. The oil can cause allergic reactions and irritation to the skin and mucous membranes.
Yarrow (Achillea millefolium) a perennial flowering plant that is related to chamomile has been highly prized by traditional healers for centuries for its wide range of medicinal properties, particularly with regards to its antiseptic and anti-inflammatory actions.
Yarrow has a high reputation and is widely employed in herbal medicine, administered both internally and externally. It is used in the treatment of a very wide range of disorders but is particularly valuable for treating wounds, stopping the flow of blood, treating colds, fevers, kidney diseases, menstrual pain etc. The whole plant is used, both fresh and dried, and is best harvested when in flower. Some caution should be exercised in the use of this herb since large or frequent doses taken over a long period may be potentially harmful, causing allergic rashes and making the skin more sensitive to sunlight. The herb combines well with Sambucus nigra flowers (Elder) and Mentha x piperita vulgaris (Peppermint) for treating colds and influenza[268]. The herb is antiseptic, antispasmodic, mildly aromatic, astringent, carminative, cholagogue, diaphoretic, digestive, emmenagogue, odontalgic, stimulant, bitter tonic, vasodilator and vulnerary. It also contains the anti-inflammatory agent azulene, though the content of this varies even between plants in the same habitat. The fresh leaf can be applied direct to an aching tooth in order to relieve the pain.
