Introduction Cold sores, also known as fever blisters, are painful, fluid-filled blisters that appear around the lips and mouth. They are caused by the herpes simplex virus (HSV), which remains dormant in the body after the initial infection. During cold weather months, many people experience outbreaks of cold sores, as winter can act as a trigger for the virus. Cold air, dry skin, and increased stress can all contribute to the reactivation of HSV, leading to the development of cold sores. In this article, we will explore the viral causes, common triggers, effective home remedies, and antiviral treatments for managing…