Urtica Urens — Homeopathic Remedy Profile

Urtica urens, the small stinging nettle, sits in the materia medica as one of Burnett's rediscoveries. The plant belongs to the family Urticaceae, and prescribing runs across two registers: the crude tincture and low decimals for gout, uric acid states and burns; the potentised remedy from 30C upward for allergic constitutions, urticarial eruptions alternating with rheumatism, and disorders of milk secretion. The self-expression of the organism is unmistakable throughout, and it is the sting itself: burning, itching, prickling heat.

At a Glance

Source and Preparation

The remedy is prepared from a tincture of the fresh plant in flower. Boericke and Clarke list Urtica urens under the small nettle; Murphy notes that Urtica dioica, the Common Nettle, carries similar if not identical properties, though the small variety is the one used in classical homeopathic work. Burnett insisted on this point, and his tincture became the practical standard.

Two registers of prescribing coexist and must be kept apart.

In the herbal or drainage register, at mother tincture (Ø) and low decimals (D1 to D6), the pharmacology of the crude plant applies. Diuretic effect, uric acid elimination and topical action on burns and hives all belong here. Burnett's method for acute gout was five drops of the tincture in a wineglass of warm water every two or three hours, watching for the urine to become plentiful, dark and loaded with uric acid. Any interaction warnings or toxicology that appear in modern herbal references concern this register.

In the classical homeopathic register, at 30C and above, no molecule of the plant remains. Dose-based data cannot be applied. What acts is the dynamic preparation, prescribed on the totality of the case. The two registers ask different questions of the practitioner. The first asks about dosimetry. The second asks whether the image of the remedy meets the image of the patient.

The Essence of Urtica Urens

The picture the plant impresses on the healthy prover is the picture of the sting itself, generalised across the organism. Skin flares up in raised, red, itching blotches. The parts burn and prickle. There is a formication that draws the fingernails to it. Cool bathing does not soothe; it aggravates. Damp, snowy air worsens everything. Rest in bed brings relief. The eruption returns at the same season each year, as though the organism kept a calendar of its own.

Two threads run alongside the skin. The first is the uric acid diathesis: gouty ankles and wrists, kidney gravel, spleen tenderness, a body that smells faintly of urine. The second is the alternation with rheumatism. When the hives suppress, the joints ache. When the joints quiet, the hives return. Suppression itself provokes vomiting. The organism is trying to eliminate something and cannot decide by which door.

The remedy meets this state by freeing the reaction. Under Urtica the urine grows plentiful and dark. The skin may briefly flare before settling. Gravel passes. Burnett recorded a middle-aged woman with enlarged spleen who smelled so strongly of nettles on examination that it almost nauseated him, and who passed considerable quantities of gravel with her stools. She called the tender spot below her spleen her "gravel-pit". These are the concrete details a prescriber remembers when the same picture walks in decades later.

Clinical Portrait

Mind and Temperament

The mental sphere is thin in the provings, and Urtica is rarely chosen on mind symptoms alone. What appears is drowsiness while reading, and a restlessness driven from below by the itching. Patients cannot leave the part alone. Nottingham's case of eczema vulvae records "sexual excitement induced by the itching and uncontrollable desire to rub." The state is somatic rather than psychic. When the skin quiets, the mind quiets with it.

Head and Vertigo

Headaches settle over the eyes, with a dull ache in the occiput and a stinging pain in the right parietal bone. A characteristic combination: headache with stitches in the spleen, or with a rush of blood to the head and a sore abdomen. Vertigo pairs with the spleen pain. Burnett cured severe cases of uremic vertigo with the tincture when other measures had failed. Urticaria may appear on the scalp suddenly, without prior warning.

Eyes

Eyes feel weak and sore. There is a peculiar sensation as if the eyeballs had been struck, and a gritty feeling as though sand were beneath the lids. The eye picture is small but distinctive and worth remembering as a confirmation.

Throat and Chest

Burning in the throat, with frequent hawking of frothy mucus that provokes a cough. Expectoration is scanty and frothy. On the chest, a sore feeling as from a blow to the left side, and intermittent soreness in the right chest by day. Hemoptysis follows the least exertion of the lungs, a keynote worth remembering in whooping cough with slight blood-streaked sputum.

Stomach and Abdomen

Nausea rises with burning in the throat. Vomiting appears when nettle-rash is suppressed. This is a symptom to think of when patients have been treated topically to remove urticaria and now cannot keep food down. The large intestine can carry chronic disease with heavy mucus secretion. Lying down brings out a sore feeling across the abdomen. Burnett noted the remedy for liver tumours in the drainage register.

Rectum

Diarrhea with frequent urging. Small, painful stools of a greenish-brown slime. Tenesmus. Mucus mixed with white matter like boiled white of eggs. Pinworms with intense itching of the anus. Hemorrhoids that burn rawly during and after stool. Burning and itching of the anus is a keynote in itself, especially when it appears alongside urticaria on the trunk or limbs.

Urinary Organs

Here the remedy earns its reputation. Hemorrhage from the bladder. Suppressed urine. Strangury. Gravel. Acrid urine that itches the parts it touches. The uric acid diathesis expresses itself along the whole tract, and the remedy meets it by favouring elimination. Bedwetting with urticaria is a small but reliable indication, the two symptoms joined by the common thread of eliminative failure.

Female Organs

Uterine hemorrhage, acid and excoriating leucorrhea, and pruritus vulvae with stinging, itching and edema. Nottingham's Mrs. W., 38, tall and slender with auburn hair, presented with eczema vulvae. Violent itching and burning. Swelling and thickening of the labia. A smooth, pale, dry mucous surface. A dry, scaly, fissured skin. Urt-u. 1x relieved every symptom. The remedy is one of the small but reliable pictures for allergic vaginitis where the labia are swollen, red and inflamed after a dietary provocation.

On the breasts the action is dual and characteristic. Urtica increases milk flow when suppressed, and arrests it after weaning. Allen records the case of a woman who had no children for three and a half years and had nursed none, who took a pint of hot infusion of the herb; her breasts swelled, discharged serum, then poured out copious milk. In current practice the potentised remedy is the first thought for agalactia, and for the reverse indication when weaning has gone painfully.

Male Organs

Itching and stinging of the scrotum that keeps the patient awake. Swelling of the scrotum. The picture is brief and unambiguous.

Limbs and Joints

Rheumatic pain in arms and ankles, worse on the right. A continuous, characterising pain in the right deltoid, worse rotating the arm inward; patients report difficulty dressing themselves. Acute and chronic gout with pain in ankles and wrists. Raised, red, itching blisters on the hands and fingers. Stiff soreness on the inside of the left knee. When gouty pain and urticarial eruption appear together in the same patient, Urtica moves to the top of the list.

Skin

The whole materia medica of Urtica returns to the skin as to a home. First-degree burns and scalds. Sunburn with intense burning and itching. Vesicles confined to the skin. Hives with rheumatism, hives after shellfish, hives with pinworms. Nettle rash returning worse every year in the same season. Rheumatism that alternates with nettle rash. Chickenpox. Urticaria nodosa. Angio-neurotic edema. Herpes labialis with heat and itching. Erythema with burning and stinging. Prickly heat.

Dermographia is a small but useful confirmation: red, itchy skin easily marked. Nottingham's second case, Mr. N., 21 years old, showed it plainly. Rubbing with a fingertip left a white line for some time. In cold, damp, snowy air his hands, feet and face became purple-red, puffed and stinging cold. Entering a warm room brought increased swelling and itching all over him, especially of the hands and face. The remedy relieved in twenty-four hours; four days later he was home better than he had been for years. The alternation of cold-air puffing and warm-air itching is characteristic, and should not be forgotten in cold urticaria of the practising physician's clinic.

Modalities

Worse:

• Cool bathing, contact with water
• Cool, moist air; snow-air
• Touch, and lying on the affected arm
• Yearly, at the same season
• Violent exertion (for hemoptysis)
• After sleep (burning of the skin)
• Suppression of the eruption

Better:

• Lying down
• Rest

Relationships

The comparisons that the source itself names organise around three axes: the sting, the eliminative failure, and the burn.

For the sting picture, with sudden red edematous swelling and stinging heat, Apis mellifica is the closest cousin, and Urtica is the classical antidote to bee stings when Apis has been insufficient. The decisive modality is temperature. Apis is worse from heat and better from cold applications; Urtica is worse from cool bathing, damp and snow-air, and better from lying still. If a cool cloth aggravates the hives, Urtica is thought of first.

For allergic urticaria of dietary origin, particularly after shellfish, Urtica is the specific antidote. In broader food-allergy states compare with Lycopodium and Bryonia. For urticaria and hives of chronic character, compare with Pulsatilla, Natrum Muriaticum and Sulphur. Urticaria nodosa points also to Bovista. For allergic reactions to bites and stings other than bees, compare Ledum and Hypericum alongside Apis.

For burns, Cantharis is the deeper remedy where blisters and raw excoriation dominate; Urtica governs the shiny, stinging first-degree burn and sunburn, and old burns that refuse to heal. Calendula belongs to the same territory of surface injury. Fever blisters with stinging compare with Natrum Muriaticum and Rhus Toxicodendron.

For chickenpox, Dulcamara is the frequent companion where Urtica does not complete the case. In intermittent fevers and malaria, compare with Arsenicum Album, Natrum Muriaticum and China; Burnett's use of Urtica in the fevers of the East India, Burma and Siam belongs beside these. Enlarged, painful spleen associated with viral infections compares Urtica with Natrum Muriaticum and Ceanothus.

Antidoted by: dock leaves (Rumex obtusifolius) rubbed on the stung part, the nettle's own juice, and the juice of the common snail. These are traditional external antidotes belonging to the folk pharmacy.

Antidotal to: Apis (bee-stings), and traditionally to hemlock, mushrooms, quicksilver, henbane, serpents and scorpions. This last list belongs to the folk pharmacy that fed Burnett's clinical instinct; it should be taken as a signal of the remedy's eliminative range, not read as a modern indication list.

Clinical Uses

First-degree burns and sunburn

The specific for shiny, stinging burns and for sunburn with intense burning and itching. Locally the diluted tincture is applied; internally, 30C every two to four hours until the pain settles. Old burns that refuse to heal fall under the same picture. Where blistering and raw excoriation dominate, Cantharis is the deeper remedy. Where the burn is confined to the surface and stinging is the leading symptom, Urtica is chosen.

Urticaria, hives and allergic reactions

Raised, red, itchy blotches with burning and stinging heat. The eruption returns yearly at the same season, aggravates from cool bathing and damp air, and ameliorates from lying still. Nettle rash after shellfish is a specific indication, and Urtica is the classical antidote. When urticaria has been suppressed and the patient now presents with vomiting or rheumatic pain, the remedy re-opens the eliminative door. Potencies from 30C through 200C are the working range in classical prescribing. In the drainage register, the tincture and low decimals are also used for acute reactive states, and the register should be chosen deliberately, since the two are not interchangeable.

Gout, uric acid diathesis and kidney gravel

Burnett's most cited indication. Painful ankles and wrists. Gouty attacks with the fever coming on at night. Urine loaded with uric acid. Gravel passing with the stool. Here the tincture in warm water is the traditional prescription, in the exact form Burnett described. The potentised remedy at 30C and above meets the constitutional picture when uric acid tendency, urticarial skin and rheumatic joints all appear in the same patient. Kidney stones with strangury and acrid urine belong to the same register.

Disorders of lactation

Two opposite indications from one remedy. For deficient milk after childbirth, and for arresting the flow after weaning when the breasts remain painfully full. Allen's case, cited above, remains the exemplar of the increasing action. The potentised remedy is used first. The tincture is reserved for stubborn cases in the drainage register.

Allergic vaginitis and pruritus vulvae

Swollen, red, inflamed labia, especially after a dietary provocation, with stinging, itching and edema. Nottingham's Mrs. W. is the model case: 1x relieved every symptom, including the excitement provoked by the itch. In current practice 30C is a reasonable starting potency, with the low decimals kept in reserve where the picture is clearly local and reactive.

Frequently Asked Questions

When is Urtica preferred over Apis in an allergic reaction?

The two share the picture of sudden red edematous swelling with stinging heat. The decisive modality is temperature. Apis is worse from heat and better from cold applications; Urtica is worse from cool bathing, damp and snow-air, and better from lying still. In practice, if a cool cloth aggravates the hives, Urtica is thought of first. The remedies also complement one another where one falls short of a complete cure.

Can Urtica be used topically as well as internally?

Yes, in the herbal register. The diluted tincture has traditional use on first-degree burns and on stings. Internal prescription in the potentised form is independent of topical use and follows the totality of the case. The two applications belong to different registers and do not compete.

Does Urtica really both increase and arrest milk flow?

The materia medica records both actions, and the clinical record supports them. The remedy meets a disturbance of the self-governing principle in the breast: where secretion is deficient it is restored; where it is excessive after weaning it is quieted. Prescribing rests on the case, not on the intended effect.

What potency is used for acute gout?

Historically Burnett gave the tincture, five drops in a wineglass of warm water every two or three hours until the urine became plentiful and loaded with uric acid. In classical practice 30C is used where the totality of the case points to Urtica and where the constitutional picture is being addressed rather than the acute drainage.

References

1. Boericke, W. Pocket Manual of Homoeopathic Materia Medica with Repertory. Entry: Urtica Urens.
2. Clarke, J. H. A Dictionary of Practical Materia Medica. Entry: Urtica Urens, including the Burnett and Nottingham cases.
3. Allen, T. F. The Encyclopedia of Pure Materia Medica. Entry: Urtica Urens.
4. Burnett, J. C. Gout and Its Cure, and clinical papers on the small nettle.
5. Murphy, R. Nature's Materia Medica. Entry: Urtica Urens.
6. Hahnemann, S. Organon of the Medical Art, §7 to §17 on the totality of symptoms and the self-expression of the organism.