A home remedy for cold sore is a natural or homemade treatment used to alleviate the symptoms and discomfort associated with cold sores. Cold sores, also known as fever blisters, are caused by the herpes simplex virus (HSV-1) and manifest as painful, fluid-filled blisters on or around the mouth.
Home remedies for cold sores have been used for centuries to treat this common condition. Many home remedies have antiviral or anti-inflammatory properties that can help reduce the duration and severity of cold sores. One of the most well-known home remedies is applying ice to the affected area to numb the pain and reduce swelling.