Viruses are spread from person to person through the exchange of bodily fluids. Even an innocent kiss can transfer millions of bacteria, according to a study in Microbiome. 

This makes cold sores among the top conditions for which people head to the pharmacy counter to seek help from their pharmacist. 

Kissing and sharing personal items can easily spread cold sores, but there is a lot of misinformation about these sores and how to deal with the symptoms.