Checking a few sites; as it common with herb info, different sites or books may have somewhat different uses; depending on the knowledge of the writers of course. I have seen this herb in books but never used it.
Has useful info but for some reason I can’t copy.
Antiviral, antibacterial, anticancer, good for thyroid.
https://herbpathy.com/Uses-and-Benefits-of-Gromwell-Cid3157
Herb: Gromwell
Latin name: Lithospermum officinale
Family: Boraginaceae (Borage Family)
Medicinal use of Gromwell: The mature seeds are diuretic, lithontripic and oxytocic. They are ground into a powder and used in the treatment of bladder stones, arthritis and febrile conditions. An infusion of the leaves is used as a sedative. The root is depurative. A syrup made from a decoction of the root and stems is used in the treatment of eruptive diseases such as smallpox, measles and itch. All parts of the plant contain a substance that inhibits the secretion of the pituitary gonadotrophic hormone. Extracts of the herb possess contraceptive properties.
http://www.naturalmedicinalherbs.net/herbs/l/lithospermum-officinale=gromwell.php
Gromwell Root: A Natural Anti-Viral Ally
Gromwell (Lithospermum erythrorhizon) is an herbaceous plant with potent medicinal properties, widely employed in modern and traditional Eastern healing practices. Gromwell root is the most commonly used part of the plant; the first recorded medicinal use of the root appeared in the ancient Chinese medical text, The Divine Farmer’s Materia Medica, written thousands of years ago, between 200 – 250 CE. In Traditional Chinese Medicine, it has been used internally to cool heat and inflammation, invigorate circulation, and detoxify. 4
Gromwell root has been used historically to treat eruptive skin lesions like psoriasis, eczema, dermatitis, measles, smallpox, hives, and rashes. In the European herbal tradition, Gromwell seed and root were used topically as plasters and poultices for similar skin complaints. Gromwell root has been cultivated in Japan since the Nara period, 710-794 CE, for both its medicinal properties and to make a highly prized red-purple dye. Some Indigenous North American tribes chewed it as a treatment for colds, drank it as a strong tea for contraceptive purposes, and used it as a topical treatment for paralyzed limbs and infections.
https://wisdom.thealchemistskitchen.com/gromwell-root-a-purifying-ally/
Hard to find at herb selling sites, here’s some on Amazon, and one can also get seeds.
https://www.amazon.com/Medicinal-Korean-Gromwell-Lithospermum-Zicaogen/dp/B01FBHIYC2
There are more types of gromwell for sale on Amazon but had massive urls.
* * * gromwell root * * *
Many thanQs, LJ !!
$24 is better than the $99 to $199 capsules I saw on Amazon!