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What causes fever blisters?
A fever blister located on the lips, mouth, and face is usually caused by the highly contagious herpes simplex type 1 virus. Only a small number are caused by herpes simplex type 2, the type usually associated with genital lesions.
There is no cure for a fever blister. However, there are medications that will relieve the pain and itchiness, and speed the healing of the blister.
See: Herpes labialis (oral herpes simplex)
The beginning of summer kicks off the camping and hiking season, anxiously awaited by those who have endured a long cold winter. This year will likely prove to be one of the busier camping seasons as many Americans bypass more expensive vacations that involve pricey airline tickets or gas guzzling road trips. Emergency department staff will probably see a greater number of people with contact dermatitis caused by exposure to poison ivy, poison oak or poison sumac. Many people have never seen poison ivy , or perhaps wouldn't recognize it if they saw it. Poison ivy, poison oak and poison sumac belong to the plant genus Toxicodendron (previously referred to as Rhus ). Toxicodendron means "poisonous tree." These plants have an oil-based substance in the resin on their leaves and in their stems and branches called urushiol that causes a delayed skin reaction in about 50% of people that contact it. Urushiol may cause severe contact dermatitis in people that have previousl...
How did I get herpes? Did my partner cheat? Or did I have it before the relationship? How long can herpes stay dormant? These are some of the questions that people newly diagnosed with genital herpes ask. Here's what we know about how this infection occurs. The first outbreak usually occurs within 2-10 days of exposure to the virus. This outbreak may be a sore or lesion in or around the vagina or on the cervix in women or on the penis and scrotum of men. Men or women can get lesions within the urinary tract, around or inside the anus, on the buttocks, thighs or other parts of the body. Usually the lesions start as reddened bumps which evolve over hours or days into blisters/open sores which crust over, dry up and heal. Sometimes a second crop of lesions occur. The initial infection may be severe and have more generalized symptoms such as fever, headache and muscle aches. However, these lesions are not the only symptom of an initial outbreak. Symptom...
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