Kora duba, 30 g

Infusion: pour 1 cup of boiling water over 1 teaspoon of oak bark, let it brew for 1 hour, strain. Decoction: pour 2 cups of boiling water over 1 tablespoon of oak bark, boil over low heat for about 10 minutes. Take 1 cup orally 2 times a day after meals. Use the infusion for rinsing in a warm form 6-8 times a day, 1/2 - 1 cup each.