What Can Trigger an Outbreak?
Even if the virus is “sleeping,” certain situations can wake it up and cause a flare-up:
- Stress (mental or physical)
- Being sick (like catching a cold or having a fever)
- Low immunity
- Hormonal changes (such as during periods)
- Sun exposure (especially on the lips)
- Fatigue or lack of sleep
- Outbreaks usually appear as sores around the mouth, nose, chin, or cheeks.
