Outbreak: Stress or illness are most common reasons for an outbreak.
Answered 7/5/2012
6.1k views
Your doctor can: prescribe Valtrex (valacyclovir) or another antiviral which can actually help regarding transmission to others. Triggers for cold sores can include illness, stress, fatigue, becoming physically cold, dry air, UV rays (sun), mouth trauma or one's period.
Answered 2/18/2015
3.6k views
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