This section of the book is from "The Complete Herbalist" by Dr. O. Phelps Brown. Also available from Amazon: The Complete Herbalist: The People Their Own Physicians By The Use Of Nature's Remedies.
This consists in the appearance of minute shining vesicles, not larger than the head of a small pin, on different portions of the body. They are usually clustered together, and surrounded by a red ring. The fluid in the vesicles becomes opaque in a few days, and finally forms light, thin scales, which fall off. In most cases a fresh crop appears as soon as the first crop is matured, in which case yellow crusts form over the diseased patch, and chronic tetter exists for weeks or months. The red eczema is the worst form of this disease.
TREATMENT. -- Low diet, cooling drinks, gentle purgatives and warm baths should be prescribed. The acetic tincture of blood root should be externally applied. It speedily cures all cases. Celandine, tar, slippery-elm poultices, etc., are also useful.