Propolis and propolis-containing preparations are good for treating infections, cold sores, and mouth and skin injuries, as well as stimulating the immune system, according to Healthline. The compound is effective against gram-positive bacteria, some viruses and yeasts, reports Drugs.com.
Propolis can help treat tuberculosis, genital herpes, flu, H1N1 virus infection and gastrointestinal problems caused by Helicobacter pylori, states WEbMD. In orodental preparations, propolis is used to speed healing time and reduce swelling and pain after mouth surgery. It can also reduce mouth ulcers, notes Drugs.com.
Because of its antioxidant and cytotoxic properties, propolis may also help to treat some forms of cancer and other tumors, but further research is needed as of December 2015, according to Drugs.com.