Croup, Bloodroot for

"One teaspoonful powdered bloodroot mixed with molasses or sugar. Have taken this myself and it relieved at once. If one dose does not seem enough it may be repeated." This is a very effective remedy, but is very weakening. Care should be taken not to repeat dose any oftener than absolutely necessary.

Source: Mother's Remedies: Over One Thousand Tried and Tested Remidies from Mothers of the United States and Canada, T. J. Ritter