Cold sores are painful, itchy, inflamed clusters of blisters that typically appear on the edges of the lips or around the nose. They are caused by a version of the herpes virus. Once a person has the virus, it hibernates in the body, occasionally becoming active and producing a cold sore.

Hydrocortisone is a widely available anti-inflammatory drug, sold over the counter in cream form or available as tablets. It is used topically to treat a variety of skin conditions and has numerous applications as an oral or intravenous medicine.

Sore in the mouth, fever and blisters either in or around the mouth or on other parts of the body can cause extreme discomfort and difficulty eating or drinking.

Cold sores, sometimes known as fever blisters, appear around the mouth, on the lips or on the gums. Highly contagious, cold sores are a common medical condition caused by a virus in the herpes family. The first symptoms of a cold sore include tingling, itching and burning.

Fever blisters--also known as cold sores--are a symptom of infection with the herpes simplex virus. The American Social Health Association reports that up to 90 percent of Americans carry the virus. One-third experience periodic outbreaks that are sometimes accompanied by flu-like symptoms.

Fever blisters -- cold sores -- on a 2-year-old child aren't uncommon. Young children are particularly susceptible to the virus that causes these painful lesions. There's no cure for the virus that causes fever blisters; however, there are oral and topical medications that can relieve your child's discomfort.

Also known as fever blisters, cold sores are painful blisters caused by the herpes simplex virus (HSV), and occur on the lips, tongue, or face and roof of the mouth. HSV causes fever blisters in 20 percent of all children by the age of five, according to the Children, Youth and Women’s Health Service website.

Cold sores and fever blisters are names for oral herpes, a viral infection caused by the herpes simplex virus.

According to the National Institutes of Health, the three most common symptoms of a cold are sneezing, a runny nose and nasal congestion. Along with aches, sore throat and cough, however, loss of appetite is another frequent symptom.

The Mayo Clinic describes a cold sore, or fever blister, as a small, painful, fluid-filled blister appearing around the mouth. In some cases, cold sores can appear in the nostrils, chin, fingers or inside the mouth. Cold sores usually last seven to 10 days.

Vicks products are common over-the-counter medications used to treat common cold and flu symptoms, such as sore throat, fever, runny nose and sneezing, aches and pains, head congestion, chest congestion and cough.

Cold sores, fluid-filled skin pustules or blisters, are caused by one of two viral infections. If you are infected with herpes simplex type 1 or type 2, cold sores may manifest around your lip, elsewhere on your face or on your genitals.