6 TOP CAUSES AND TRIGGERS OF COLD SORES
1. STRESS: It is a common trigger for cold sores. When you're stressed, your immune system is weakened, making it easier for the herpes simplex virus (HSV-1) to reactivate.
2. SUN EXPOSURE: UV radiation from the sun can trigger cold sores. This is because UV radiation can damage the skin and trigger the HSV-1 virus.
3. HORMONAL CHANGES: Hormonal fluctuations during menstruation, pregnancy, or menopause can trigger cold sores.
4. FATIGUE AND LACK OF SLEEP: Fatigue and lack of sleep can weaken your immune system, making it easier for the HSV-1 virus to reactivate.
5. CERTAIN FOODS: Some foods can trigger cold sores, including:
- Citrus fruits and juices
- Chocolate
- Nuts (especially peanuts)
- Spicy or acidic foods
- Foods high in arginine (e.g., almonds, walnuts)
6. ILLNESS OR INFECTION: Having another illness or infection, such as a cold or flu, can trigger cold sores.