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Scabies is a condition of very
itchy skin caused by tiny
mites that burrow into your skin. The itching is caused by an allergic reaction to the mites.
Scabies spreads very easily from person to person. It can affect people of all
ages and from all incomes, social levels, and living situations.
With treatment, the scabies mites die and the itching goes away over a period of days to weeks. Without treatment, the mites continue to reproduce under the skin, causing more sores and itching.
Scabies mites spread from person to person by close contact, such as sleeping in the same bed or touching someone's skin. The mites can
also be spread by sharing towels, clothing, and other personal items.
Scabies often affects several household members at the same time.
You can spread it to another person before you have symptoms.
Scabies has two main symptoms:
Symptoms are more likely to occur:
In babies and small children, itching and skin irritation
may also occur on the scalp, neck, and face and on the palms of the hands and soles of the feet.
If you have many scaly, crusted sores, you may have a rare form of scabies called crusted scabies or Norwegian scabies.
If this is the first time you have had scabies, it may be several weeks
before you have itching and skin sores. But if you have had it before, symptoms
will probably start in a few days.
Usually a doctor can diagnose scabies based on your symptoms. Scabies is especially likely if you have had
close contact with other people who have had the same symptoms.
Sometimes you may have a test to confirm that you have scabies. For example, the doctor may gently scrape some dry skin from an affected
area and look at it under a microscope for signs of mites.
Scabies won't go away on its
own. To get rid of it, and to keep from spreading it to others, you need to use a special cream or lotion that a doctor prescribes. These products contain permethrin or another medicine. In
severe cases, your doctor may also give you pills to take.
or lotions are applied to the entire body from the neck down. The
medicine may also be applied to the scalp, face, and neck, taking care to avoid the
area around the mouth and eyes. In most cases, you leave the medicine on for 8 to 14
hours and then wash it off.
Children can usually return to day care or school after treatment
scabies medicines aren't safe for children, older adults, and women who are
pregnant or breast-feeding. To avoid dangerous side effects, be sure to follow your doctor's instructions carefully.
you have scabies, you and anyone you have close contact with must all be
treated at the same time. This keeps the mites from being passed back and forth
from person to person. Until scabies has cleared up, you should avoid close contact with anyone and make sure not to share any personal items.
To make sure that all the mites are killed:
After treatment, the itching usually lasts another 2 to 4
weeks. It will take your body that long to get over the allergic reaction
caused by the mites. Antihistamines (such as Benadryl), steroid creams, or, in severe cases, steroid pills can help relieve itching. Before you use these medicines, talk with your doctor about what is best for you (or your child).
If you still have symptoms after 4 weeks, you may need
Learning about scabies:
The mission of the American Social Health Association is
to improve the health of individuals, families, and communities, with a focus
on sexual health and preventing sexually transmitted diseases.
Other Works Consulted
Tucker WFG (2010). Scabies. In MG Lebwohl et al., eds., Treatment of Skin Disease: Comprehensive Therapeutic Strategies, 3rd ed., pp. 682–684. Philadelphia: Mosby Elsevier.
Wolff K, Johnson RA (2009). Scabies. In Fitzpatrick’s Color Atlas and Synopsis of Clinical Dermatology, 6th ed., pp. 868–876. New York: McGraw-Hill.
August 5, 2013
Adam Husney, MD - Family Medicine & John Pope, MD - Pediatrics
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