Chaparral is one of the best herbal anti-biotic. It contains nordihydroguaiaretic and acid (NDGA), which destroys bacteria, viruses, and parasites, both internally and externally. It has been used for: Acne, Longevity, Bronchitis, Rashes, Eyes, Leukemia, Arthritis Chicken Pox, Skin Problems, Dandruff, AIDS, Colds, UTI Diarrhea, Warts, Strokes, Tumors, VD, Gum Disease, Cancer