What Is a Scabies Rash?

A scabies rash occurs when the microscopic Sarcoptes scabiei mite burrows into human skin and lays eggs. The itchy rash spreads as mites continue to burrow and reproduce.

Incubation

• It may take up to two months for a scabies rash to appear after a person is infested for the first time. Subsequent infestations usually cause symptoms in a few days, according to the Centers for Disease Control.

Symptoms

• A scabies rash may appear as tiny bumps and blisters, particularly in the folds of the skin, and be intensely itchy. Itching may be worse at night.

Risk Factors

• Anyone can get scabies, and it spreads easily in crowded conditions. Scabies often spreads in nursing homes, prisons and child care facilities, according to the CDC.

Transmission

• Scabies is primarily spread through close physical contact, according to Mayo Clinic. Sometimes it is transmitted by sharing clothing or bedding. When a person has been infested, he can spread scabies to others even before the rash develops.

Treatment

• Scabies is usually treated with scabicides, which are special lotions that kill the mite.

Prevention

• Avoid close contact with anyone who has scabies. Prevent re-infestation by washing all clothes and bedding in hot water and sealing items that cannot be washed in a plastic bag placed away from living areas for a couple of weeks.