Impetigo: Black Walnut powder made into a paste works great, also take a few drops of Black Walnut tincture internally a few times a day.
My son had Staph Impetigo rash cultured and diagnosed by his doctor, in his diaper region. I made a paste of powdered black walnut hulls, just with the powder and water, applied over the rash. Rash cleared up within 2 days, without need for the antibiotic ointment prescribed. I also gave him 1 drop of black walnut tincture a few times a day until the rash was gone.
Black Walnut tincture works very quickly for impetigo. I learned this from other herbalists. You can use the green or black hulls, infuse them with alcohol (vodka works well) and then apply twice daily. You can also purchase it in health food stores. It appears impetigo is making the rounds again and very common.