Sore Breasts, a Poultice of Peach Leaves for

"Take enough peach tree leaves to mix well with meal and water to the consistency of a poultice." This poultice should be applied hot, but should only be used in cases where the breast has matter or pus in it.

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