Echinacea has been shown to have the ability to enhance the activity of the Polymorphonuclear leukocytes
Strengthens your body's immune system, helps fight colds and flus caused by viruses or bacteria before it happens
Reduces inflammation
Lowers blood sugar levels 
High in antioxidants (helps treat skin disorders)
Known for treatment of toothaches
Treats bowel pain
Treats snake bite
 
According to source via Google Echinacea treat colds, upper respiratory tract infections, urinary tract infections, and slow-healing wounds. The root of the Echinacea pallida plant is also approved by the USDA and Canada Health for the treatment of flu-like infections.