Black walnut leaf is also used for skin parasites.  A strong tea is made from the leaf to apply to ringworm and other skin irritations

One of the primary uses of black walnut leaves is in treating skin conditions such as ringworm, acne, and eczema 1. The leaves contain compounds that inhibit the growth of bacteria and fungi, making them effective in controlling infections 2. Additionally, black walnut leaves are known to help with digestive issues and can be used to expel intestinal parasites 2.

The leaves are also rich in antioxidants, which help in reducing inflammation and promoting overall health 2. They can be harvested throughout the season and used fresh or dried for various medicinal preparations

Black Walnut Leaf is now considered an allergen.