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February 10, 2012

Head Lice Infestation (Pediculosis) Glossary of Terms

The following are health and medical definitions of terms that appear in the Head Lice Infestation (Pediculosis) article.

Allergic reaction: The hypersensitive response of the immune system of an allergic individual to a substance.
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Brain: That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called "hemispheres."

Dandruff: A mild skin condition that produces white flakes that may be shed and fall from the hair.
See the entire definition of Dandruff

Diagnosis: 1 The nature of a disease; the identification of an illness. 2 A conclusion or decision reached by diagnosis. The diagnosis is rabies. 3 The identification of any problem. The diagnosis was a plugged IV.
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Head lice: Pediculus humanus capitis, parasitic insects found on the heads of people. Head lice are most often found on the scalp behind the ears and near the neckline at the back of the neck. The lice hold onto the hair with hook-like claws at the end of each of their six legs. Head lice are rarely found on the body, eyelashes, or eyebrows. These insects lay their sticky, white eggs on the hair shaft close to the root, while hatched lice stay mostly on the scalp. Head lice infection is very common and easily acquired by coming in close contact with someone who has head lice, infested clothing, or infested belongings. Preschool and elementary school children and their families are most often infested.
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Infection: The growth of a parasitic organism within the body. (A parasitic organism is one that lives on or in another organism and draws its nourishment therefrom.) A person with an infection has another organism (a "germ") growing within him, drawing its nourishment from the person.
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Itching: An uncomfortable sensation in the skin that feels as if something is crawling on the skin or in the skin, and makes the person want to scratch the affected area.
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Lindane: An organochlorine pesticide and nerve poison. Also a suspected carcinogen (cancer-causing agent). Although many countries have banned lindane, it is still used in the US for treating head lice and scabies. Also known as gamma-hexachlorocyclohexane (HCH).
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Microscope: An optical instrument that augments the power of the eye to see small objects. The name microscope was coined by Johannes Faber (1574-1629) who in 1628 borrowed from the Greek to combined micro-, small with skopein, to view. Although the first microscopes were simple microscopes, most (if not all) optical microscopes today are compound microscopes.

Neck: The part of the body joining the head to the shoulders. Also, any narrow or constricted part of a bone or organ that joins its parts as, for example, the neck of the femur bone.

Nit: Nits are lice eggs. They are hard to see and are often confused with dandruff or hair spray droplets. Nits are found firmly attached to the hair shaft. They are oval and usually yellow to white. Nits take about a week to hatch. All nits must be removed to prevent reinfestation with lice. They can be removed with a special comb or with the fingers. Topical preparations are available that loosen the "glue" that binds them to the hair, making removal easier.
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Nurse: 1) A person trained, licensed, or skilled in nursing. 2) To feed an infant at the breast.

Nymph: A nymph is a stage in the life cycle of certain arthropods, as ticks and lice. (Not all nymphs are in Greek mythology.)
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Occlusion: The act of occluding. See: Occlude.

Parasite: An organism that lives in or on and takes its nourishment from another organism. A parasite cannot live independently.
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Pediculicide: An agent that destroys lice. From pediculus, lice + -cide, killer or killing.

Pediculosis: Infested with lice. See also: Head lice; Pubic lice.

Pharmacist: A professional who fills prescriptions, and in the case of a compounding pharmacist, makes them. Pharmacists are familiar with medication ingredients, interactions, cautions, and hints.
See the entire definition of Pharmacist

Prescription: A physician's order for the preparation and administration of a drug or device for a patient. A prescription has several parts. They include the superscription or heading with the symbol "R" or "Rx", which stands for the word recipe (meaning, in Latin, to take); the inscription, which contains the names and quantities of the ingredients; the subscription or directions for compounding the drug; and the signature which is often preceded by the sign "s" standing for signa (Latin for mark), giving the directions to be marked on the container.

Prescription drug: A drug requiring a prescription, as opposed to an over-the-counter drug, which can be purchased without one. The word "prescription" comes from the Latin "praescriptus" compounded from "prae", before + scribere, to write = to write before. Historically, a prescription was written before the drug was prepared and administered.
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Therapy: The treatment of disease.
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Suggested Reading on Head Lice Infestation (Pediculosis) by Our Doctors

  • Related Diseases & Conditions

    • Itching
      • Itching can be a common problem. Itches can be localized or generalized. There are many causes of itching to include: infection (jock itch, vaginal itch), disease (hyperthyroidism, liver or kidney), reactions to drugs, and skin infestations (pubic or body lice). Treatment for itching varies depending on the cause of the itch.
    • Blepharitis
      • Blepharitis is inflammation of the eyelids. Acne rosacea, Staphylococcal bacteria, allergies, sensitivities to makeup or contact lens solutions, head lice, or other conditions may cause blepharitis. Symptoms and signs include itchy eyelids, burning sensation in the eyes, crusting of the eyelids, light sensitivity, red, swollen eyelids, loss of eyelashes, and dandruff of the lashes and eyebrows. Proper eyelid hygiene and a regular cleaning routine controls blepharitis.
    • Children's Health
      • Children's health is focused on the well-being of children from conception through adolescence. There are many aspects of children's health, including growth and development, illnesses, injuries, behavior, mental illness, family health and community health.
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Head Lice Infestation (Pediculosis)

Hair Removal Strategies

There are several ways to remove your unwanted hair, including over-the-counter methods and those administered under a doctor's care. With most of these methods, the hair eventually grows back.

Shaving

Your hair growth rate will determine how often you have to shave the affected region. Shaving is best for legs, arms or facial hair. However, this hair removal method can cause ingrown hairs in the pubic region.

Plucking

Plucking is the most painful method, but may be the most worthwhile when there are just a few hairs you want to remove. Examples include reshaping your eyebrows or pulling out those few stray hairs that may appear on your face, especially for a woman. You should not use this hair removal method for large areas because it can cause ingrown hairs or scarring.

Depilation

Be cautious when selecting hair removal creams over-the-counter: All creams are not the same....

Read the Hair Removal article »







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