Echinacea Angustifolia, taken in relatively large, frequent doses, has been touted as an effective natural antibiotic, without actually killing off your microbiome! Used in strep, colds, flu, wounds, even sepsis, this is a wonderful extract to keep on hand. 
 
Ingredients: Organic echinacea angustifolia, organic vodka
 
Directions: According to Stephen Buhner from Herbal Antibiotics: For throat and mouth infections, place 30 drops undiluted in mouth, swish around for 30 seconds before swallowing. For other infections, dilute one whole dropperful with a little water and drink every hour or so. For sepsis, dilute 1 teaspoon in a little water, hold in mouth for 30 seconds, and drink, and take every half hour till situation improves (black pepper extracts taken before each dose will increase its impact).
Disclaimer: this information is not intended to take the place of medical advice!!!