Excessive Sunlight
Similarly, you need to be cautious of the sun, and if possible stay indoors. No doubt, you are probably aware of the damages that UV rays can make possible on your skin, but that is not the only havoc its responsible for, it can also serve as a trigger to cold sores. As a result, it is advised that if you must go out on a sunny day, you make use of lip balm with SPF, a beach umbrella, and a wide-brimmed hat to fight back and prevent further outbreaks. [7]
