There are several things you can do to reduce the frequency and severity of cold sore outbreaks: 1. Avoid triggers that can cause cold sores, such as stress, sunlight, and cold or dry weather. 2. Practice good oral hygiene, including brushing your teeth regularly and using mouthwash. 3. Avoid sharing personal care items, such as razors or toothbrushes, with others. 4. Use a lip balm with a high SPF to protect your lips from the sun. 5. Consider taking antiviral medications as prescribed by a healthcare provider to prevent future outbreaks.