Pictures of scabies skin rashes are available on WebMD.com. Scabies skin rashes and itching are caused by an infestation of mites called Sarcoptes scabiei, which burrow under the outer layers of human skin and lay eggs, according to WebMD.
Symptoms typically take between four to six weeks to manifest after initial infestation, explains WebMD. Symptoms include intense itching, particularly at night, rashes, blisters, scales and potential sores caused by scratching. Early stages of scabies may be mistaken for other skin conditions, but scabies tends to itch much more. Another way to distinguish scabies are distinct tracks on the skin, caused by female mites burrowing under the surface of the skin to lay eggs.