Assertion: arnica | /r/HasProperty | applied to broken skin
Facets:
Source sentences:
text: Arnica is classified as an unsafe herb by the US Food and Drug Administration (FDA) because of its toxicity and should not be administered orally or applied to broken skin where absorption can occur.
text: Arnica is classified as an unsafe herb by the FDA because of its toxicity and should not be administered orally or applied to broken skin where absorption can occur.4, 57