Infestation means the presence of a living parasite either on the body (such as head lice), or within the body (such as scabies in the skin or tapeworms in the gut).

Skin infestations most commonly occur with scabies, caused by the mite sarcoptes scabei.

The pregnant female mite burrows into the skin, laying eggs as she goes, usually between the fingers, on the feet, or on the genitals. The body mounts an allergic reaction and the response is the formation of red papules which are itchy, particularly at night.

Cross-infection between close contacts is common. There may be an associated allergic rash affecting the inside of the thighs, the abdomen and the armpits. Unless there is a very severe infestation (called Norwegian scabies) the rash does not extend above the neck.

There are a number of treatments which need to be applied to the whole body (except the head and neck). Antihistamines may help to reduce the itch. In order to prevent re-infestations all members of a household should be treated, and all bedding laundered.

There are no natural remedies or complementary therapies that can cure scabies, but Tea Tree oil added to your bath may help control the rash.