Oral herpes labialis, better known as cold sores or fever blisters, most often comes from the herpes simplex 1 virus. It is possible for the virus that causes genital warts, herpes simplex 2 virus, to cause oral sores as well, though it is rare. These sores occur on the lips and around the mouth and sometimes in the mouth. When the ulcerations form inside the mouth, they are usually found on the gums or roof of the mouth. Symptoms vary, depending on the individual and whether there have been previous outbreaks.
Lesions
Lesions surrounding the mouth and on lips are one of the most recognizable symptoms of herpes labialis. Lesions begin as small bumps and may resemble mistaken for pimples. The areas begin to blister and become crusty. Outbreaks can last up to seven days on average. Individuals with an oral herpes outbreak may experience oozing and drainage as the lesions begin to heal. Drainage may range from clear to blood tinged. In mild cases, the lesions may be mistaken for insect bites or chapped skin.
Pain
Pain is also a symptom associated with oral herpes. The individual may experience inflammation and pain at the site of the lesion. Lesions located outside the mouth, especially when not yet crusted over, may cause pain when exposed to acidic or spicy foods.
Flu-like Symptoms
Individuals with oral herpes may experience symptoms similar to the flu. Specific symptoms associated with this include fevers, body aches and chills. The lymph nodes may become enlarged as well. When lesions are located in the mouth, sore throats are common. Due to this, the individual may have poor appetite and may not want to eat or drink.
Prodrome
Similar to genital herpes, those with recurring oral herpes outbreaks often experience a phase called "prodrome." Prodrome is the term used to describe the precipitating sensation that is often felt just prior to an active outbreak of herpes. Individuals often experience sensations of itching, burning, numbness or tingling at the site of the outbreak. According to the American Social Health Association, this prodrome phase usually occurs about two days before an active outbreak.
