Assertion: comfrey's root | /r/ObjectUse | used for boil
Facets:
Source sentences:
text: Leaves or roots applied as a wash, poultice or ointment are used for bruising, sciatica, boils, rheumatism, neuralgia, varicose veins, bed sores, wounds, ulcers, insect bites, tumours, muscular pain, pulled tendons, gangrene, shingles and dermatological conditions.