Goldenseal is one of the herbals that when taken increases the blood supply to the spleen and this is one of the areas in the body that has to do with protection of the immune system. Taking Goldenseal may not assist the body during a cold to ward off the symptoms, but it can help prevent the body from being attacked by the germs that carry colds to the body.

This plant has antiviral properties and when taken it can help the body fight off colds and flu, it is recommended to be taken two to three times a day for seven to ten days. This can be repeated as many times as the common cold or flu is a threat to the body.
 
There are no known side effects from taking goldenseal and people with serious medical conditions should always consult their physician prior to taking any type of medication or herbal treatment.