Sandra Silva Casabianca MSc and Johanna Sorrentino

Cold sores are a primary symptom of oral herpes, also known as herpes labialis. The term herpes may refer to a virus or the conditions it causes.

Both irritable bowel syndrome (IBS) and anxiety may manifest with digestive symptoms. In addition, evidence suggests your digestive health affects the production of mood-related chemicals in your body. The gut-brain axis may be at the core of this relationship.