2250 NW Flanders, Suite 205
Portland, OR 97210
503 223-3104
Office Hours
Our office is open 7:30am to 5:00pm Monday through Friday.
Search Site
Useful Links
NEW TREATMENT Excimer laser
Useful information available at skincancer.org

What is your risk of skin cancer?

A great tool from AAD for more information on various skin conditions

Online instruction for self-skin exams

2007 Skin Cancer Facts


Infectious Diseases



Topics: Herpes Simplex | Molluscum | Scabies | Shingles | Tinea Versicolor | Warts



Herpes Simplex
Herpes Simplex


Info: The herpes simplex virus (HSV) can cause blisters and sores almost anywhere on the skin. HSV infections can be very annoying because they can periodically reappear.
There are two types of HSV - Type 1 and Type 2. Type 1 virus causes cold sores. Most people get Type 1 infections during infancy or childhood. Type 2 virus causes genital sores. Most people get Type 2 infections following sexual contact with an infected person. The virus affects anywhere between 5 and 20 million people, or up to 20 percent of all sexually active adults in the United States.

Symptoms: Sores usually occur either around the mouth and nose, or on the genitals and buttocks. The sores may be painful and unsightly.

Type 1 is often referred to as fever blisters or cold sores which are tiny, clear, fluid-filled blisters that most often occur on the face. There are two types of infections - primary and recurrent. Although most people when exposed to the virus get infected, only 10% will actually develop sores or cold blisters when this infection occurs. The sores of a primary infection appear two to twenty days after contact with an infected person and can last from seven to ten days.

Type 2 usually results in sores on the buttocks, penis, vagina or cervix, two to twenty days after contact with an infected person. Both primary and repeat attacks can cause problems including: a minor rash or itching, painful sores, fever, aching muscles and a burning sensation during urination. HSV type 2 may also occur in locations other than the genital area, but is usually found below the waist.

Risk: For chronically ill people and newborn babies, the viral infection can be serious, but rarely fatal. Type 1 infections are usually caught from close contact with family members or friends who carry the virus. It can be transmitted by kissing, sharing eating utensils, or by sharing towels. Type 2 infections are most commonly a result of sexual intercourse with an infected person.

Treatment: Being aware of your condition and safely stopping the transmission to others is a first step to control your infection. Herpes can spread if there is no sore! It is now estimated that over 80% of all genital herpes is transmitted when there isn't anything on the skin and no symptoms. While there is no known cure for herpes, clinical studies are now ongoing to attempt to reduce or possibly eliminate outbreaks. These experimental therapies, however, have no potential to eliminate the virus from the affected nerve.




Molluscum Contagiosum
Molluscum Contagiosum


Info: Molluscum contagiosum is a common non-cancerous skin growth caused by a viral infection in the top layers of the skin. They are similiar to warts, but are caused by a different virus. The virus and growths are easily spread by skin contact.

Symptoms: Molluscum are usually small, flesh-colored or pink, dome-shaped growths. They may appear shiny and have small indentation in the center. They are usually found in clusters on the skin of the chest, abdomen, arms, groin, or buttock. They can also involve the face and eyelids.

Risk: The molluscum virus is transmitted from the skin of one person who has these growths to the skin of another person. Often occurs where skin-to-skin contact is frequent. Molluscum can also be sexually transmitted if growths are present in the genital area.

Treatment: Many dermatologists advise treating molluscum because they spread. They can be frozen with liquid nitrogen, destroyed with various acids or blistering solutions, treated with an electric needle (electrocautery), scraped off with a sharp instrument (curette), treated daily with a home application of a topical retinoid cream or gel, treated with a topical immune modifier, or treated with a topical anti-viral medication. If there are many growths, multiple treatment sessions may be needed every three to six weeks until the growths are gone.




Scabies
Scabies


Info: A tiny mite has infested humans for at least 2,500 years. It is often hard to detect, and causes a fierce, itchy skin condition known as scabies. Dermatologists estimate that more than 300 million cases of scabies occur worldwide every year. The condition can strike anyone of any race or age, regardless of personal hygiene.

Symptoms: The microscopic mite that causes scabies can barely be seen by the human eye. A tiny, eight-legged creature with a round body, the mite burrows within the skin. Within several weeks the patient develops an allergic reaction. This results in severe itching, often intense enough to keep sufferers awake all night. Early on, little red bumps, like hives, tiny bites, or pimples appear. In more advanced cases, the skin may be crusty or scaly.

Conditions: Crusted scabies is a form of the disease in which the symptoms are far more severe than usual. Large areas of the body, including hands and feet, may be scaly and crusted. These crusted hide thousands of live mites and their eggs, making treatment difficult because medications applied directly to the skin may not be able to penetrate the thickened skin. This type of scabies occurs mostly among the elderly, in some AIDS patients, or in people whose immunity is decreased. These cases are extremely infectious.

Risks: Human scabies is almost caught from another person by close contact. It could be a child, a friend, or another family member. Although, more prominent in crowded living conditions, and poor hygiene - everyone is susceptible.

Treatment: Scabies is easy and quick to treat with prescription drugs: 5 percent permethrin cream is applied to the skin from head-to-toe at bedtime, and washed off the next morning. Dermatologists recommend that the cream be applied to cool, dry skin, over the entire body (including the palms of the hands, soles of the feet, groin, under the fingernails, and the scalp in small children) and left on for 8 to 14 hours. Second treatments are one week later, which may be recommended for infants with scabies of the palms and soles, or if new lesions appear after treatment. Another effective prescription treatment is 1 percent lindane lotion. Also an overnight treatment, lindane is effective after 1 to 2 doses. Sulfur ointment and Crotamiton cream are other special care treatment options. Ivermectin is an oral medicine which may be prescribed for certain cases of scabies, especially the difficult to treat crusted form of scabies. The critical factor in the treatment of scabies is getting rid of the mite. See a dermatologist as soon as possible to begin treatment.




Herpes Zoster (Shingles)
Herpes Zoster (Shingles)


Info: Herpes zoster, also known as shingles or zoster, is a viral infection caused by the same virus that causes chicken pox. Anyone who's had chicken pox can develop herpes zoster. Most people will get zoster only once. People with a weakend immunity for any reason are more prone to develop zoster.

Symptoms: The first symptom of zoster is burning pain, tingling, or extreme sensitivity in one area of the skin, usually limited to one side of the body. Zoster is most common on the trunk and buttocks. But can also appear on the face, arms, or legs if nerves in these areas are involved.

Treatment: If diagnosed early, oral anti-viral drugs can be prescribed to decrease both viral shedding and the duration of the skin lesions. Corticosteriods, sometimes in combination with anti-viral drugs, also are used for severe infection.




Tinea Versicolor
Tinea Versicolor


Info: Tinea versicolor (TIN-e-ah VER-si-color) is a common skin condition due to overgrowth of a skin surface yeast (type of fungus). This overgrowth results in uneven skin color and scaling that can be unsightly and sometimes itch. The yeast normally lives in the pores of everyone's skin. It thrives in oily areas such as the neck, upper chest, and back.

Symptoms: The rash has small and scaly white-to-pink to tan-to-dark spots. These spots are scattered over the upper arms, chest, and back, and may sometimes appear on the neck and face. On light skin, they may be faint or they may show up as tan-to-pink spots, while on dark skin they may be light or dark. Tinea versicolor usually produces few symptoms. Occasionally, there is some slight itching that is more intense when a person gets hot.

Risks: Most people get tinea versicolor when they are teenagers or young adults. It is rare in the elderly and in children, except in tropical climates where it can occur at any age. Both dark and light skinned people are equally prone to its development. People with oily skin may be more susceptible than those with naturally dry skin.

Treatment: Tinea versicolor is treated with either topical or oral medications. Topical treatment includes special cleansers including some shampoos, creams, or lotions applied directly to the skin, once or twice a day. Several oral medications have been used successfully to treat tinea versicolor. Each patient is treated by their dermatologist according to the severity and location of the disease, the climate, and the desire of the patient.




Warts
Warts


Info: Warts are non-cancerous skin growths caused by a viral infection in the top layer of the skin. Viruses that cause warts are called human papilloma virus (HPV).

Symptoms: Warts are usually skin-colored and feel rough to the touch, but they can be dark, flat, and smooth. The appearance of a wart depends on where it is growing.

Kinds: There are several different kinds of warts including: common warts, foot (Plantar) warts and flat warts. Common warts usually grow on the fingers, around the nails, and on the backs of the hands. Foot warts are usually on the soles of the feet. They can grow in clusters which are known as mosaic warts. Flat warts are small and smoother than other warts. They tend to grow in large numbers, 20-100 at any one time.

Risks: Warts are passed from person to person, sometimes indirectly. The time from the first contact to the time the warts have grown large enough to be seen is often several months. The risk of catching hand, foot, or flat warts from another person is small.

Treatment: Common warts in young children can be treated at home by their parents on a daily basis by applying salicylic acid gel, solution, or plaster. Warts can also be treated by "painting" with cantharidin in the dermatologist's office. For adults and older children cryotherapy (freezing) is generally preferred. Electrosurgery (burning) is another good alternative treatment. Flat warts are often too numerous to treat with methods mentioned above. As a result, "peeling" methods using daily applications of salicylic acid, tretinoin, glycolic acid, or other surface peeling preparations are often recommended. Other treatments for warts include: Laser therapy, bleomycin, immunotherapy & interferon.




All content & images on this page is provided by: American Academy of Dermatology


Patient Education