Up to 90 percent of people will get one in their lifetime. Cold sores are an unpleasant, unsightly condition caused by the herpes simplex virus (HSV), which erupt on the lips periodically in those who are infected. These contagious blisters can be easily passed from person to person when the sores are present. It’s important to pay attention to symptoms and take measures to avoid spreading them.

Unlike genital herpes, which are caused by the HSV-2 strain, these sores are typically caused by HSV-1, although they can, in rare cases, be caused by HSV-2. Transmission occurs when the mouth or genitals come into direct contact with an infected sore.

What Are The Signs?

According to Mayo Clinic, one of the first signs of an impending cold sore eruption is a tingling sensation on the lips or mouth. A day or so later that is followed by one or several small blisters filled with fluid, which will burst and crust over as they heal. These blisters are often hard and painful. Typically, sores will last for 8 to 10 days, although they may take up to four weeks to heal completely. New outbreaks often occur in the same spot, with the first outbreak having the worst symptoms and subsequent outbreaks being less severe. In some patients, these blisters can occur on or around the nose and cheeks.

People who are experiencing their first outbreak may experience a number of other symptoms, which can range from fever and sore throat to painful gums, muscle aches, and swollen lymph nodes.

How Can I Cope?

Cold sores are painful eyesores, but there are several ways to deal with outbreaks. There are a number of over the counter (OTC) medications available that can help treat your cold sore – easing symptoms and reducing healing time, including Abreva, Zilactin, and Ziladent.