Scabies is a skin condition caused by an infection with scabies (Sarcoptes scabiei). Scabies mites are microscopic parasite organisms that burrow deep into the skin and cause inflammation, itching and rash. Later symptoms of scabies are: crusted skin, pustules, blisters and nodules. Most of the symptoms caused by scabies are allergic reactions to the eggs and faeces of the mites, which are toxic to the human body. Rash is the first symptom that appears in scabies and occurs a few days after being contaminated with the parasite mite. Scabies rash is very persistent and can take up to several weeks or months after the mite infestation has been removed.