St Francis Sinafect - Helps relieve upper respiratory tract infections including acute and chronic sinusitis and hay fever allergies. Sinafect's formula was created specifically for upper respiratory tract infections and for symptoms related to excess mucous and inflammation of the upper portion of the respiratory system. The balanced and matched herbs in Sinafect have combined antihistamine, antibacterial, antiviral and overall infection-fighting properties. Take St Francis Herb Farm Sinafect Tincture formula if you suffer from the symptoms of upper respiratory tract infections such as acute and chronic sinusitis or with hay fever allergies.