Question and answer

Vigorous scratching can break your skin and allow a secondary bacterial infection, such as impetigo, to occur. Impetigo is a superficial infection of the skin that's caused most often by staph (staphylococci) bacteria or occasionally by strep (streptococci) bacteria.

A more severe form of scabies, called crusted scabies, may affect certain high-risk groups, including:

  • People with chronic health conditions that weaken the immune system, such as HIV or chronic leukemia
  • People who are very ill, such as people in hospitals or nursing facilities
  • Older people in nursing homes

Crusted scabies tends to be crusty and scaly, and cover large areas of the body. It's very contagious and can be hard to treat.

Source: