SO DYK
GENERAL IMMUNITY

Myrrh

Commiphora myrrha

also known as myrrh resin

Moderate (traditional + topical)
Myrrh — Köhler 1887 botanical illustration

A reddish-brown resin from a thorny tree native to the Horn of Africa and Arabian Peninsula. Burned as incense in ancient Egypt, used in Ayurvedic and traditional Chinese medicine, and named in the Bible — myrrh has a longer continuous medicinal history than almost any other plant resin. Modern use focuses on the mouth, gums, and topical wound care.

  • Long traditional use as an antimicrobial wash for the mouth, gums, and minor wounds
  • Eases inflammation of the gums (gingivitis) and mouth ulcers when used as a rinse or in toothpaste
  • Anti-inflammatory action useful for sore throat
  • Topical use traditionally associated with wound healing and skin infections
  • Bitter digestive support in traditional use
  • Active in lab studies against several types of bacteria, fungi, and parasites
Skip internal use during pregnancy — can stimulate the uterus
Use caution with diabetes medication — myrrh may lower blood sugar
Use caution with blood thinners — has mild anticoagulant action
Use caution with thyroid medication — high doses may affect thyroid hormone
Topical use is generally safe, but can cause skin irritation in sensitive people
Stop two weeks before surgery
Common questions
Yes, this is its best-supported modern use. Myrrh has genuine antimicrobial action and is traditionally used as a rinse for gingivitis and mouth ulcers, which is why it still shows up in some toothpaste formulas today. Memorial Sloan Kettering
Use caution. It can lower blood sugar, has mild blood-thinning action, and may affect thyroid hormone at high doses. Internal use deserves more care than the topical rinse most people are familiar with.
Skip internal use. Myrrh can stimulate the uterus, so it's not recommended during pregnancy.
Yes, about two weeks beforehand, the same precaution as other herbs with mild blood-thinning activity.