Remedy · herb
Echinacea
Also: Echinacea purpurea, coneflower
A popular cold remedy whose evidence is weak and inconsistent.
Evidence by condition
Each grade reflects the research for Echinacea and that condition specifically.
- CCommon cold
Does not reliably prevent or treat colds; any effect is small and preparation-dependent.
2 citation s
- Echinacea for preventing and treating the common cold Systematic review 2014 · n=4,631 · Cochrane Database of Systematic Reviews · PMID 24554461 · DOI 10.1002/14651858.CD000530.pub3
- Echinacea NCCIH · accessed 2026-06-21
- Echinacea for preventing and treating the common cold