Echinacea is a herb that is very good for cold. The author once had gone for a singing audition and the day before she went down with severe cold. Upon being suggested Eichinacea she used the tincture for a whole day and woke up for the audition with no cold. Echinacea can at least reduce the duration of the disease for you and I highly suggest buying Echinacea
and then reading the procedure to make the tincture.
Frontier Echinacea Purpurea Herb C/s Certified Organic, 16 Ounce Bag
and then reading the procedure to make the tincture.
http://adelightfulhome.com/how-to-make-echinacea-tincture-its-easy/