3 HSV-1 & HSV-2 Frequently benign but can cause severe diseases. The clinical course is characterized by 2 stages: a primary infection and recurrent episodes.
4 PathophysiologyThe virus enters the host through either a break in the skin or intact mucus membrane. The virus invades sensory neurons and is transported to the sensory ganglia where it lies dormant.
5 SymptomsAt first there is a burning, itching, tingling sensation in the area where the lesion will form.There is also pain, fever, swollen lymph nodes and malaise.The lesion appears as vesicle 1-3 mm in diameter.The boarder around the vesicle may be red and inflamed.
6 Fully developed lesions has a crusty cover and if there is pus under the crust that may indicate a secondary bacterial infection.The whole symptomatic process typically lasts days and heals without scarring.
14 Herpes gladiatorum Head, neck and chest Usually contracted by wrestlers
15 Treatment:Acyclovir200 mg/5 times a day for 5 days.
16 ChickenpoxChickenpox is a highly contagious disease that causes skin lesions in children.Transmitted through direct contact with lesions and respiratory secretions.Chickenpox is caused by the varicella-zoster virus (VZV).
17 SymptomsI.P; daysChickenpox causes a red, itchy rash on the skin that usually appears first on the abdomen or back then spreads to almost everywhere else on the body, including the scalp, mouth, nose, ears and genitals.
18 The rash begins as multiple small, red papules that look like insect bites. They develop into vesicles filled with clear fluid.The blister wall breaks, leaving open sores, which finally crust over to become dry, brown scabs.Some kids have a fever, abdominal pain, sore throat, headache, or a vague sick feeling a day or 2 before the rash appears.
21 Herpes Zoster (Shingles) Herpes zoster is caused by the same virus as chicken pox (VZV).Zoster typically causes more pain and less itching than chicken pox. A person may feel burning, itching, tingling. These symptoms are typically present for 1-3 days, before a red rash appears in the same area.Then groups of vesicles appear, which generally last for 2-3 weeks.
27 Complications Postherpetic neuralgia (PHN). Severe disease may show hemorrhagic, bullous and gangrenous lesions.Motor involvement: facial palsy.Ocular complications: uveitis, keratitis and conjunctivitis.
28 Treatment:Acyclovir800 mg/5 times a day for 7-10 days.
29 WartsWarts are caused by human papilloma viruses (HPV).
35 Treatment: Electrocautry. Cryosurgery. Keratolytic therapy; 5-20% salicylic acid and 5-20% lactic acid in flexible collodion.Podophyllin resin 25%.Laser therapy.
36 Molluscum Contagiosum The infecting virus is a pox virus called the molluscum contagiosum virus (MCV).Molluscum contagiosum lesions are flesh-colored, dome-shaped, and pearly in appearance. They are often 1–5 millimeters in diameter, with a dimpled center.