Scabies can lead to skin sores and serious complications like septicaemia (a bloodstream infection), heart disease and kidney problems. It is treated using creams or oral medications. Scabies is contagious and spreads through skin-to-skin contact. It occurs worldwide but is most common in low-income tropical areas.
If left untreated, scabies can continue for many months. It is important to remember that recurrence of symptoms after attempted treatment does not exclude the diagnosis of scabies because patients may not have treated themselves correctly or may have been reinfested by an untreated contact.
Complications of scabies
Scabies can sometimes lead to a secondary skin infection if your skin becomes irritated and inflamed through excessive itching. Crusted scabies is a rare but more severe form of scabies, where a large number of mites are in the skin.
When a person is infested with scabies mites the first time, symptoms usually do not appear for up to two months (2-6 weeks) after being infested; however, an infested person still can spread scabies during this time even though he/she does not have symptoms.
The infestation may last for years without treatment and has been called the seven year itch. This is a photomicrograph of scabies feces in skin scrapings.
Scabies can lead to skin sores and serious complications like septicaemia (a bloodstream infection), heart disease and kidney problems. It is treated using creams or oral medications. Scabies is contagious and spreads through skin-to-skin contact.
Scabies is a common, yet neglected, skin disease. Scabies occurs across Australia, but most frequently in socioeconomically disadvantaged populations in tropical regions, including in remote Aboriginal and Torres Strait Islander communities. In temperate settings, the disease clusters in institutional care facilities.
Permethrin kills the scabies mite and eggs. Permethrin is the drug of choice for the treatment of scabies. Two (or more) applications, each about a week apart, may be necessary to eliminate all mites. Children aged 2 months or older can be treated with permethrin.
Scabies will not go away without treatment 1. First have a warm bath or shower. 2. Then cover the whole body with cream/lotion, from the chin down to the soles of the feet, in between the fingers, under the nails and on the private parts.
Items that cannot be dry-cleaned or laundered can be disinfested by storing in a closed plastic bag for several days to a week. Scabies mites generally do not survive more than 2 to 3 days away from human skin. Children and adults usually can return to child care, school, or work the day after treatment.
Most people can be cured with a medicine that they apply to their skin. These medicines are often applied to all skin from the neck down. Infants and young children often need treatment for their scalp and face, too. A dermatologist will provide specific instructions to follow.
Scabies is highly contagious and is spread by close contact. If untreated, it can last indefinitely. Scabies is not caused by poor hygiene.
See a GP if: your skin is still itching 4 weeks after treatment has finished.
How long can scabies mites live? On a person, scabies mites can live for as long as 1-2 months. Off a person, scabies mites usually do not survive more than 48-72 hours. Scabies mites will die if exposed to a temperature of 50°C (122°F) for 10 minutes.
In addition, when treating infants and young children, scabicide lotion or cream also should be applied to their entire head and neck because scabies can affect their face, scalp, and neck, as well as the rest of their body.
Persons with crusted scabies should be considered highly contagious and appropriate isolation procedures should be used to protect other persons from becoming infested. In general, a person diagnosed with scabies could return to work once treatment is begun.
The developmental stages of S. scabiei consist of egg, larva, protonymph, tritonymph and adult. This life-cycle is typical of that for other astigmatid mites.
The most common symptoms are: Blisters or bumps — Pink, raised bumps with a clear top filled with fluid are likely to appear on areas of the body where scabies have infested. Itching — A sensation of a foreign object crawling on the skin will create constant and sometimes severe itching, especially at night.
Wash all clothes, bedding, and towels that you used in the 4 to 5 days before you started treatment. Use hot water, and use the hot cycle in the dryer. Another option is to dry-clean these items. Or seal them in a plastic bag for 3 days.
Key points about scabies
Scabies mites are very contagious. They often spread from person to person while they are sleeping in the same bed, or during other close contact. Scabies should be treated quickly to keep the mites from spreading.
The day you start treatment, wash your clothes, bedding, towels, and washcloths. Mites can survive for a few days without human skin. If a mite survives, you can get scabies again. To prevent this, you must wash clothes, sheets, comforters, blankets, towels, and other items.