According to the National Institute of Dental and Craniofacial Research, while cold sores are caused by the herpes type 1 virus, an outbreak may be brought on by stress.
Are Cold Sores Caused by Stress?
Oct 27, 2009 | By
According to the National Institute of Dental and Craniofacial Research, while cold sores are caused by the herpes type 1 virus, an outbreak may be brought on by stress.
