Scabies is a skin parasite, meaning an infestation of the surface layer of the skin by a parasite: it is the "Sarcoptes scabiei". It is highly contagious and is often found in homes or other places with limited hygiene. After contamination, the female burrows into the skin to lay her eggs. The symptoms are intense itching occurring mainly at night, combined with a localized rash, and sometimes specific lesions mainly found on the wrists, hands, or between the fingers. Crusts may appear. This disease is transmitted quickly to friends and family, by direct contact with the infected person or their clothing. Scabies requires specific medication and hygiene for bedding and clothes to get rid of the parasite. The people in contact with the patient must also be treated.