Question 1

How does wood nettle relieve arthritis pain?

Accepted Answer

Wood nettle relieves pain through urtication, a process where stinging hairs inject formic acid and histamine into the skin. This creates localized irritation that triggers a counter-irritant response, overriding deeper pain signals. The flavonoids quercetin and rutin provide additional anti-inflammatory support. Indigenous peoples, including the Iroquois, have used this mechanism for centuries to treat arthritis and chronic joint pain. Evidence Level B supports this traditional application.

Question 2

Can I take wood nettle with diuretic medications?

Accepted Answer

No, wood nettle should not be combined with prescription diuretics. Wood nettle possesses natural diuretic properties that can intensify the effects of medications like furosemide or hydrochlorothiazide, potentially causing excessive fluid loss, electrolyte imbalances, and dangerous dehydration. Patients with kidney disease should also avoid wood nettle due to increased renal workload. Always consult a healthcare provider before combining herbal supplements with prescription medications.

Question 3

What is the recommended dosage for wood nettle tea?

Accepted Answer

The standard adult dosage for wood nettle tea is 2-3 grams of dried leaves steeped in hot water, consumed up to three times daily. For urtication therapy, fresh plant material is applied topically to affected joints or painful areas. Begin with lower doses to assess individual tolerance, as the stinging compounds can cause intense reactions. Consult a qualified herbalist or healthcare provider for personalized dosing guidance.

Question 4

Is wood nettle safe during pregnancy?

Accepted Answer

Wood nettle is considered unsafe during pregnancy and should be strictly avoided. The herb's diuretic properties and uterine-stimulating effects pose potential risks including dehydration, electrolyte imbalance, and possible uterine contractions. The stinging compounds may also cause unpredictable systemic reactions in pregnant individuals. Breastfeeding women should likewise avoid wood nettle due to insufficient safety data regarding transfer into breast milk. Evidence Level B supports this caution.

Question 5

What are the side effects of wood nettle urtication?

Accepted Answer

Wood nettle urtication causes an intense stinging sensation lasting minutes to hours, accompanied by localized redness, itching, and welts. Some individuals experience prolonged discomfort or allergic reactions. The diuretic effect from internal use may cause increased urination and potential electrolyte changes. People with sensitive skin, bleeding disorders, or immune conditions should approach urtication cautiously. Discontinue use if severe reactions occur and seek medical attention.

Wood Nettle

Sources & Citations

Roman Nettle

Nettle

Swedish Nettle Herb

Summary

Background

Safety & adverse effects

Evidence summary

PubMed sources

Government sources