Goldenseal is effective against a variety of microbial infections, as well as stings, bites, cuts and scrapes. The powder has antiseptic properties and can be sprinkled onto cuts or wounds to stop bleeding or bites to stop itching. It can also be taken in pill or capsule form for traveler's diarrhea. Note: Goldenseal is on the United Plant Savers "At Risk" List, so only buy a brand that has been organically grown. Avoid goldenseal if you have kidney disease, glaucoma, high blood pressure, heart disease, diabetes, or if you are pregnant.