Herbal Tea for Conjunctivitis, memory loss, jaundice, Eyebright

The herb eyebright has been used since the Middle Ages as an eyewash for infection or inflammation of the eye. However, as much as one would like to believe that all traditions are wise, eyebright appears to have been selected for treating eye diseases not because it works particularly well, but because its petals look bloodshot. This follows from the classic medieval philosophic attitude known as the Doctrine of Signatures, which states that herbs show their proper use by their appearance.

What Is Eyebright Used for Today?
Like many herbs, eyebright contains astringent substances and volatile oils that are probably at least slightly antibacterial. But there's no evidence that eyebright is particularly effective for treating Conjunctivitis, Hordeolum, Blepharitis, Optic Neuritis; Warm compresses consisting of nothing but water (or ordinary black tea) are probably equally effective under the same conditions. Eyebright tea is also sometimes taken internally to treat jaundice, respiratory infections, and memory loss.

Dosage
Traditionally, eyebright tea is made by boiling 1 tablespoon of the herb in a cup of water. This is then used as an eyewash or taken internally up to 3 times daily.