Scabies

Very low urgency
Common-

Infestation of the upper layer of the skin by a parasite called Sarcoptes Scabiei.

It is usually transmitted between people who live together and/or have intimate contact, as well as through contact with sheets and/or mattresses infested with these parasites.

The incubation period is between 6 and 8 weeks before symptoms appear. The symptoms are intense itching of the skin (especially at night), a rash on the skin, the presence of small grey-white furrows of a few millimetres (scabby furrows) between the fingers, wrists and/or ankles and, after a few days, lesions from scratching due to intense itching.

It is diagnosed by a medical history and physical examination.

Treatment involves removing the mites from the skin and relieving the severe itching. The mites are removed with anti-parasitic creams and ointments, while the itch is relieved with topical antihistamines and/or topical corticosteroids. In order to eradicate the parasite, it is important to treat all family members or exposed persons who show symptoms of infestation and to thoroughly wash bedding and towels with hot water.

Bibliographic references
  1. Romani L, Steer AC, Whitfeld MJ, Kaldor JM. Prevalence of scabies and impetigo worldwide: a systematic review. Lancet Infect Dis 2015; 15:960.
  2. Fuller LC. Epidemiology of scabies. Curr Opin Infect Dis 2013; 26:123.
  3. Heukelbach J, Feldmeier H. Scabies. Lancet 2006; 367:1767.
  4. Currie BJ, McCarthy JS. Permethrin and ivermectin for scabies. N Engl J Med 2010; 362:717.
  5. Johnston G, Sladden M. Scabies: diagnosis and treatment. BMJ 2005; 331:619.
Author
Dr. Maria Trabazo
Copyright
© TeckelMedical 2026

Symptoms

    Whitish lines in between the fingers, toes, ankles and/or wrists


    Itchy skin


    Itchy skin at night


    Intense itch in palms of hands, soles of feet and/or scalp


    Skin injuries due to scratching

Symptoms to watch out for

Fever (temperature higher than 38 ºC)
Scabs in the majority of the lesions
Reddish sores that are itchy, break open, and ooze clear fluid or pus
History of immunodeficiency (HIV, diabetes mellitus, oncological disorders, long-term corticosteroid consumption).

Self-care

Wash clothes and bed linen in hot water.
Consume antihistamines against itching.
Store the clothes that cannot be washed in a bag for a week to kill the mites.