Source: aerial parts.
Actions: astringent, anti-inflammatory.
Therapeutic uses: eye tonic for eye irritation or infections such as conjunctivitis, sties and eyestrain. Also used internally for sinusitis, catarrh, sore throats and hay fever.
Typical preparation: tablet, decoction or liquid tincture.
Contraindications: none known, although its safety during pregnancy hasn’t been proven.