Comfrey efficacy and effects and contraindications

April 3, 2023
Comfrey is sweet, salty and cold in nature, and belongs to the heart and liver meridians. The medicinal part of comfrey is the root of soft comfrey, yellow-flowered soft comfrey and comfrey of the genus Comfrey, family Comfreyidae. So what are the efficacy and effects of comfrey?

Detoxify and dispel spots

Comfrey is salty and cold, and enters the liver meridian and blood division. It can cool the blood and invigorate the blood, but also detoxify the rash, which can be used to treat warm poisonous spots, deficiency heat and poisonous rash, purple and black skin rash and other diseases; it can also be used to treat measles rash that does not penetrate, and the rash that comes out is purple and dark.

Clearing heat and subduing swelling

Comfrey can clear heat and detoxify the toxin, and salty can clear heat and cool the blood, as well as invigorate the blood and subdue swelling, and is often used to treat canker sores and sores that do not converge after ulceration.

Treatment of burns

Comfrey clear heat and cool the blood has a detoxifying effect, can be used to treat burns, can be soaked in sesame oil and filtered to get the oil to apply to the affected area, the effect is obvious.

Contraceptive

Comfrey aqueous extract can cause massive necrosis of placental chorionic cells, animal experiments found that long-term administration of comfrey extract can cause weight loss of pituitary gland, ovaries and uterus, but there is no damage to tissues, and its inhibitory effect is reversible.

Comfrey pharmacological effects

1、Therapeutic aqueous decoction and comfreyin have inhibitory effects on Staphylococcus aureus, Streptococcus haemolyticus, Escherichia coli, Bacillus dysenteriae and Pseudomonas aeruginosa. 2. Comfrey naphthoquinone derivatives have significant antifungal effects. 3、Comfrey extract has obvious anti-inflammatory effect and inhibits parainfluenza virus, herpes simplex virus, herpes zoster virus, etc. 4, Comfrey extract has inhibitory effect on specific allergic reaction. 5, Comfrey also has anti-tumor, hepatoprotective, hemostatic and anti-fertility effects.

Comfrey's contraindications

Comfrey is cold, easy to hurt the spleen and stomach, so people with weak stomach and loose stools should not take comfrey. In addition, comfrey has a rash-transparent effect, but it is not suitable for people whose measles has already come out.

Comfrey's toxic side effects

Comfrey has a small poison, with a special smell, a slightly larger dose can cause nausea and loose stools. It has nephrotoxicity and phototoxicity, and can promote intravascular coagulation, so it should be strictly grasped the indications and used with caution.
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