Quercus Rubra. (Red Oak.)
The Red Oak is not only astringent from its tannic acid, but it possesses other properties that will render it useful in some cases. Among them is its tonic influence, and its action upon skin and kidneys. I have used it in chronic eczema associated with Rumex, both as a local and internal remedy, with marked advantage. A combination of Quercus Rubra, Rumex and Alnus is my favorite remedy in obstinate cases of scrofula where there are old ulcers, feeble tissues and cicatrices. In these cases I use it as a local application and as an internal remedy.
I have employed it principally in infusion and decoction, but for experiment would recommend the preparation of a tincture, ℥viij. of the fresh inner bark to Alcohol 76° Oj. Dose from gtts. v. to ʒss.