an itchy skin condition such as eczema, psoriasis, ringworm or herpes
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Uses:
When I was for some years molested with Tetters on the back of one and sometimes of both my hands, notwithstanding all endeavors of my very friendly and skilful Physitians I had speedy healing from a neighbouring Spring of far less fame.
The Royal Society. Philosophical Transactions: Giving Some Accompt of the Present Undertakings, Studies,and Labours of the Ingenious in Many Considerable Parts of the World, volume I (1666)
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And curd, like eager droppings into milk, The thin and wholesome blood: so did it mine; And a most instant tetter bark'd about, Most lazar-like, with vile and loathsome crust, All my smooth body. Thus was I, sleeping, by a brother's hand Of life, of crown, of queen, at once dispatch'd;
William Shakespeare. Hamlet
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Ambroise Paré. The Workes of that famous Chirurgion Ambrose Parey (published: Latin in 1579, English in 1649), p.207