People of all ages and skin colors get pityriasis rosacea, but this skin disease is more likely to occur:
- Between 10 and 35 years of age.
- During pregnancy.
What causes pityriasis rosea?
No one knows what causes pityriasis rosea. Research shows that it is not an allergy. We also know that fungi (plural of fungus) and bacteria do not cause this skin disease. A virus may be the cause, but researchers have yet to prove this.
While it is possible that a virus causes pityriasis rosea, this skin disease does not seem to be contagious. It does not seem to spread from one person to another.
When people get pityriasis rosea, they often have the following signs (what you can see) and symptoms (what you feel):
- Mother patch: The first sign of this rash is a single patch on the skin. Called a "herald" or "mother" patch, this patch is the only patch on the skin for about 2 weeks. This patch can get large. It feels scaly. People who have fair to olive-colored skin will see a pink or rose-colored patch. In people who have dark skin, the color varies from violet to dark gray.
- Daughter patches: Within a week or two, more patches appear on the skin. These patches are smaller and may appear on the chest, abdomen, back, arms, and legs. Sometimes these patches develop on the neck, face, and elsewhere on the skin. Patches can even develop inside the mouth. These patches are oval shaped. If many patches appear, these new patches may form a pattern on the back. The pattern often looks like a Christmas tree.
- Patch-free zones: Patches rarely appear on the face, scalp, palms, or soles.
- Itch: The skin can itch. About half (50%) of the people have itchy skin. The itch tends to worsen when the skin gets warm, such as when a person works out or takes a hot shower.
Sometimes, a mother patch does not develop, just lots of daughter patches. Some people may get only a mother patch. It is rare for a person to get only daughter patches or a mother patch.
Pityriasis rosea usually goes away without treatment. You can expect to have the rash about 6 to 8 weeks before it disappears. Some people have it for 2 weeks. Occasionally, it lasts longer than 8 weeks.
If a patient has unbearable itching, a prescription medicine for itch may be prescribed
Conditions We Treat
Acne is the most common skin condition in the United States. Although it's common, accurate information about acne can be scarce. Who gets acne? If
An acne cyst forms when the pore fills with dead skin cells oil, and bacteria. A cyst goes deep into the skin and can hurt
Actinic Keratosis (Also called a solar keratosis)
An actinic keratosis or AK is a rough,dry, scaly patch or growth that forms on the skin An AK forms when the skin is badly damaged by ultraviolet
Alopecia (Hair Loss)
Who experiences hair loss? Millions of people experience hair loss. Some people see their hair re-grow without doing anything. Others need treatment
This is a common skin disease in children. Children often get atopic dermatitis (AD) during their first year of life. If a child gets AD during this
Atypical Mole (Dysplastic)
This type of mole can look like melanoma. It is not melanoma. But you have a higher risk of getting melanoma if you have any of the following: 4
Basal Cell Carcinoma
Basal cell carcinoma (BCC) is the most common form of skin cancer. More than two million cases of this skin cancer are diagnosed in the United States
Bedbugs are tiny insects that feed on human blood. They hide in dark places close to where humans sleep and usually crawl out to feed while people
If a blocked pore stays open, it can look kind of black and is called a blackhead. If a blocked pore closes up, the top of the bump looks more
When a person is born with a mole, the mole is called a congenital mole. Roughly, 1 out of every 100 people is born with a mole. These moles vary in
Dry skin is common. It can occur at any age and for many reasons. Using a moisturizer often helps repair dry skin. Sometimes people need a
Eczema is a word that means irritated skin. Doctors don't really know why some kids and adults get eczema, and others don't. They think it might
Female Pattern Baldness
The most common cause of hair loss is a medical condition called hereditary hair loss. About 80 million men and women in the United States have this
Fungi are single or multi-cellular organisms that cause skin infections. Fungi can be true pathogens, which cause infections in healthy people, or
Genital warts are warts that appear in the genital area. There can be 1 wart or a cluster of warts. People get these warts by picking up the human
Herpes simplex is a common viral infection. If you’ve ever had a cold sore or fever blister, you picked up the herpes simplex virus. Most cold sores
Hives are welts on the skin that often itch. These welts can appear on any part of the skin. Hives vary in size from as small as a pen tip to as
Many people get lichen (LY-kin) planus (PLAN-us). This disease can develop on one or several parts of the body. It can appear on the skin or inside
Melanoma is a type of skin cancer. Anyone can get melanoma. When found early and treated, the cure rate is nearly 100%. Allowed to grow, melanoma
Melasma (muh-LAZ-muh) is a common skin problem. It causes brown to gray-brown patches on the face. Most people get it on their cheeks, bridge of
Moles are common. Almost every adult has a few moles. Adults who have light skin often have more moles. They may have 10 to 40 moles on their skin.
Molluscum (muh-luhs-kum) contagiosum (kən-tā-jē-ō-səm) is a common skin disease. It is caused by a virus. This virus easily spreads from person to
People who get this skin problem often see distinct, coin-shaped (nummular) or oval sores on their skin. Nummular dermatitis often appears after a
People of all ages and skin colors get pityriasis rosacea, but this skin disease is more likely to occur: Between 10 and 35 years of age. During
Poison Ivy Dermatitis
Many people get a rash from poison ivy, poison oak, and poison sumac. This rash is caused by an oil found in the plants. This oil is called urushiol
Rosacea (rose-AY-sha) is a common skin disease. It often begins with a tendency to blush or flush more easily than other people. The redness can
This is a very common skin disease that causes a rash. When this rash appears, it often looks like the one pictured above. The skin tends to have
Seborrheic keratoses tend to do the following: Start as small, rough bumps, then slowly thicken and develop a warty surface Have a waxy,
Anyone who has had chickenpox can get shingles. After the chickenpox clears, the virus stays in the body. If the virus reactivates (wakes up), the
Even the same type of skin cancer can look very different from person to person. This makes it hard to look at a picture and tell if you have skin
We all have yeast living on our skin. When the yeast grow out of control, a person can get a skin disease called tinea versicolor. Yeast is a type
Warts are small, harmless growths that appear most frequently on the hands and feet. Sometimes they look flat and smooth, other times they have a