Pow-Wows, or Long Lost Friend, by John George Hoffman, [1820], at sacred-texts.com
A GOOD REMEDY FOR BAD WOUNDS AND BURNS.
The word of God, the milk of Jesus' mother, and Christ's blood, is for all wounds and burnings good.
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It is the safest way in all these cases to make the crosses with the hand or thumb three times over the affected parts; that is to say, over all those things to which the three crosses are attached.