Symptoms of Cold Sores

Cold sores, sometimes also called fever blisters are lesions (blisters) filled with fluid and caused by HSV type-1 (herpes simplex virus type-1), although sometimes can be causes by herpes simplex virus type-2. It is not curable (as is the case with most viral infections) although it is possible to reduce frequency of its occurrence after establishment of herpes simplex virus in body. Cold sores are different from other types of sores, such as canker sores, which is also a common type of sore and cold sore need to be differentiated from canker sores. To differentiate cold sores from canker sores it is important to know the symptoms of cold sores.

Symptoms of cold sore:

The symptoms of cold sore include presence of blisters around mouth, which are filled with fluid. The blisters are painful, red in color and raised from skin. Blisters generally more than a few in number and small in size. Appearance of blisters is preceded by prodrome, which can occur as slight tingling or pain and last for a day or two before the blisters appear. Prodrome may also be indicated by mild fever and mild generalized body pain. The illness (blisters) lasts for 10-14 days.

The blisters of cold sore (fever blisters) form and get filled up with fluid, break and than ooze. The ooze dry and form yellow crust, which sloughs off and expose pinkish skin which heals without forming any scar.

Although cold sore or fever blisters most commonly occur on lips, they can also occur nostrils, chin or even fingers, albeit less commonly. Sometimes blisters can also occur inside mouth (most common site inside mouth is palate), when it may become very problematic for eating. The sores inside mouth is mainly canker sores, which may be difficult to differentiate, if cold sores occur inside mouth.

The incubation period of cold sore is variable and may range from less than a week to more than 3 weeks. The fever blisters or cold sores may appear as long as 3 weeks after exposure to herpes simplex virus type-1, although commonly fever blisters appear 1 week after exposure to herpes simplex virus type-1.

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1 Comment

  • the Success Ladder August 31, 2010 08.54 pm

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