Hi all this is what we distribute to the schools in our area. I work for the Health Department as a secretary I hope it helps.
WHAT ARE HEAD LICE? They are tiny six-legged parasitic insects approximately 1 – 3 mm in length. They are greyish in colour, but become reddish or brown when swollen with blood. LIFE-CYCLE The female louse lays 6 – 7 eggs per day and in her lifetime of 30 days or more, may lay well over 100 eggs. THE EGGS ARE KNOWN AS NITS. They are laid very close to the scalp, glued to separate hairs, where they find the warmth required for hatching. The colour of the eggs is similar to the scalp and therefore may be difficult to detect. As nits mature, they become shiny and yellowish in colour. After 7 – 10 days they begin to hatch, and after only a few hours will begin to feed 3 – 5 times a day on the blood of the scalp. Empty shells change to a clear, shiny white colour. After a further 2 weeks, the now mature lice become highly mobile, and can be found on as many as 5 heads per day.Damaged nits and those exposed to treatment eventually turn black or brown. As the hair grows, the nits move away from the scalp.WHAT ARE THE SIGNS AND SYMPTOMS OF INFESTATION? The first sign is usually intense itching of the scalp. If investigated carefully, the eggs will be noticed, especially behind the ears, at the nape of the neck, on the crown and under the fringe. Dandruff cannot be mistaken for nits. Dandruff is dull flaky and loose enough to fall out, whereas nits are firmly attached to the hair. If lice are not treated at this stage, further infections and skin diseases such as dermatitis and impetigo may follow.
TREATMENT ORDINARY SHAMPOO DOES NOT KILL LICE OR NITS. Crude oil, kerosene, paraffin etc. effectively kill lice BUT NOT NITS.
1.A suitable preparation is obtainable from your local chemist in the form of aerosols (e.g. PARA), lotions (e.g. QUELLADA, GAMBEX, LYCLEAR) or powders. Instructions to be followed carefully. All preparations are poisonous and can be absorbed by the skin, therefore again, please use carefully and only according to instructions. Resistance to lice may develop as well if treatment is not according to instructions. Preparations used are designed especially to kill any lice and nits in the hair. They do not remove nits from or out of the hair. No product appears fully ovicidal (i.e. there is a possibility that not all nits are destroyed) therefore it is essential to remove all nits from the hair.
2.After completing the treatment, rinse hair with a solution of 1 part vinegar to 2 parts water plus ½ teaspoon of baby oil. This will make it easier to remove nits.
3.A fine-toothed metal comb will remove most nits. Those remaining nits must be removed with your fingers. When you run your finger along a hair with a nit stuck on it, it feels like a little piece of grit, which will not dislodge or come off.
4.In strong light, go through the hair, strand by strand and slide remaining nits between your fingers, out of the hair.
5.Your child MAY NOT return to school until completely free of lice and nits. THIS IS A PROVINCIAL AND EDUCATION REGULATION AND A CLEARANCE CERTIFICATE MUST BE OBTAINED FROM YOUR LOCAL CLINIC or General practitioner.
6.Although not proven, fomites (i.e. clothes, hats, bedding, mattresses, pillows etc.) may transmit lice. All bedding and clothing must be changed and then washed and ironed with a hot iron. Seams of mattresses and pillows need also to be ironed.
7.After 7 - 10 days of the initial treatment, it may be necessary to repeat treatment to kill any newly hatched lice. Treatment is necessary ONLY if lice are visible / demonstrable.
8.REMEMBER : PREVENTION IS BETTER THAN CURE
*Check your child / children’s hair daily on returning from school.
*Explain to your child / children that they should not share toilet articles such as brushes and combs.
*Spread is by direct contact only – Boys’ hair should be reasonable short and girls’ long hair should be tied back, not left hanging loose.
*Brushing hair regularly may damage or dislodge lice. Encourage this practice in your child/ children.
9.If parents do not accept this responsibility in assisting schools to control this intolerable problem, outbreaks will continue to recur.
HEAD LICE INFORMATION SHEET