Scabies is treated using prescription scabicide drugs, according to MedicineNet. Permethrin and lindane creams are the most commonly used scabicides, and there is no over-the-counter alternative available to treat scabies. People with scabies apply these creams to the skin from the neck down, leave it on for eight hours or overnight, and then rinse it off.
A scabies infestation is commonly diagnosed by identifying its telltale rash, increasing itchiness and a history of worsening symptoms at night, according to MedicineNet. However, the most definitive diagnosis is made by examining scrapings of skin under a microscope for the presence of mites, eggs or pellets.
According to MedicineNet, a scabies rash is comprised of small, red bumps and blisters that are typically on certain areas of the body, such as between the fingers, around the nipples, and on the wrists, elbows, knees, axillary folds and buttocks. The tiny bumps may or may not contain blood crusts. Scabies are transmitted through direct skin-to-skin contact and are sometimes thought of as a sexually transmitted infection. While not impossible, they are typically not transmitted through normal, casual contact, such as shaking hands. However, in households, they can be transmitted from one family member to others over time.