Externally, nasturtium can be used as an antimicrobial poultice or compress for treating local bacterial infections.
Internally, it has been used to fight bacterial infections and in particular respiratory infections. It has also been effective for some in treating influenza and the common cold. The leaves have a high vitamin C content. Vitamin C has been used to fight infection in the past.
The Tea has also been used to fight infections of the reproductive and urinary tract.
Parts used are the leaves and flowers.
Please always contact your doctor first for any care you need. This is to just share what some have experienced with the natural herb, Nasturtium. It has not been tested by the food and drug administration.