"The salts' healing properties were discovered in the early 17th century when a farmer living near Epsom, Surrey, discovered a spring rich in magnesium sulphate." ~more
"The trace minerals in sea salt help to soothe and heal skin that is inflamed, broken out in a rash, itching or even oozing, according to herbalist and nutritionist Stephanie Tourles. Add sea salt to bathwater to reduce discomfort and speed the healing of skin lesions caused by acne, eczema, poison ivy, poison oak, poison sumac and psoriasis. ..."