Over a third (37%) of all of school children under 16 (4.06 million) now experience at least one head lice infestation a year, rising to 48% among four to 11 years-olds, according to a new study1. Yet only 39% of parent are managing to successfully get rid of these infestations, even though £23 million2 is spent on over-the-counter and prescription head lice treatments every year.
Of the 1,000 parents surveyed by head lice treatment NYDA® 92% Dimeticone Dual Formula – an innovative treatment clinically proven to kill head lice in under five minutes3 and their eggs (nits) within 8 hours4,5,* It found many parents still failed to check their offspring’s heads regularly for head lice, leaving infestations undetected. Just 35% of parents said they check once a week, 9% check once a month, and 12% say they only check when they notice the child scratching its head. A further 6% of parents said need the motivation of a school letter with a lice warning.
Nearly a third of parents (29%) still use chemical head lice treatments based on neuro-toxic insecticides, to which a high percentage of lice – up to 80% in certain cases – have in fact developed resistance6. Many parents seem to remain unaware that this is the case -- or that a treatment like NYDA® does not encounter resistance, since it works by suffocating the lice rather than poisoning them.
Finally, manufactures and healthcare professionals are failing to take note of and communicate to parents the Department of Health’s recommendations on eradicating lice. The British National Formulary, used by health professionals, states explicitly that “a contact time of 8–12 hours or overnight treatment is recommended for lotions and liquids 7”, but many branded treatments – though not NYDA® – claim to be able to clear head lice and their eggs in 30, 20 or even just 15 minutes. In practice, this is too short a time to kill louse eggs, which are more stubborn to treat. Indeed, some treatments are unlikely to be able to kill the eggs at all. In these circumstances, a second application after seven to nine days becomes essential to kill newly hatched nymphs (larvae) and thus break the lifecycle before the nymphs reach maturity and in turn start reproducing. (During its 50-day lifespan, a female louse can lay up to 300 eggs.)
Babs Young, Independent Nurse Consultant, Children and Young People’s Public Health and NYDA’s public health expert, commented:
“Although head lice are not considered a major health hazard, infestations can have a physical and psychological impact on children and their families. The results of this new survey make clear that, because head lice infestations are a common occurrence, health professionals and pharmacists need to provide clear information and guidance to parents on the methods of detection and treatment. This should be based on the guidelines from the Department of Health (BNF) which will enable parents to choose the most effective treatments for their child.”
Which products are parents using in their attempts to eradicate lice?
36% of parents surveyed had treated their children on average 7.13 times in the last three years, yet only 39% reported treatment success in eradicating head lice:
• 29% of those parents had used a chemical treatment containing an insecticide with neurotoxic action. Not only are these treatments ineffective against eggs younger than four days, but in up to 80% of cases, lice are resistant to the insecticides they contain2.
• 38% of parents had used a treatment that works physically. These lotions contain dimeticone (like NYDA®) or cyclomethicone and work by coating the lice and killing them through suffocation or disrupting their water balance.
• 34% had used mechanical combs (wet combing or ‘bug-busting’), employing a head lice comb and hair conditioner to remove the head lice and their eggs manually over several sessions
• 13% had used natural treatments containing herbal oils e.g. coconut oil. (There is no clinical evidence of efficacy for these measures.)
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For further information, please contact Penny Lukats on 07775 992350 or email email@example.com
NOTES TO EDITORS
About NYDA® www.nyda.co.uk
Already the No 1 brand in Germany 8, and now available in 12 countries across Europe including the UK, NYDA® – with its 92% Dimeticone Dual Formula – is clinically proven to kill head lice within one minute 3 and to kill their eggs within 8 hours 4,5,*.
NYDA® is NHS-approved, which means it can be prescribed FREE of charge to children under 16 in the UK by the family GP, practice nurse**, health visitor** or prescribing pharmacist**. In Scotland, NYDA® is also available FREE to children under 16 on the Scottish National Minor Ailments Scheme.
**For those practitioners who have completed their training.
The lotion is based on a special dual formula of 92% dimeticone and works by suffocating head lice, larvae and their eggs. (Dimeticone is a form of silicone so safe that it is used for treating colic in babies, and it also moisturises and protects the skin.)
NYDA®’s efficacy in killing both lice and their eggs means that it breaks the louse lifecycle. In fact, a large-scale clinical trial9 and laboratory (ex vivo, in vitro) studies, have proven that NYDA® kills lice, nymphs and eggs at all stages of their development3,10. Since it kills by physical, rather than neurotoxic-acting means11, head lice cannot develop resistance to NYDA® as they can to neurotoxic-acting insecticides6.
NYDA® is available on prescription or it can be purchased from community pharmacies nationwide including Superdrug in-store pharmacies, Numark and online through www.nyda.co.uk.
NYDA® is available in two sizes
1. 50 ml pump spray + detection comb
2-3 treatments – RRP £14
2. 100ml pump spray + detection comb
4-6 treatments – RRP £22
Using NYDA® can change the outcome for families with head lice infestations
Instructions to parents:
1. Identify the presence of head lice using the special NYDA® detection comb.
2. Use the pump spray supplied to apply NYDA® over the child’s entire head of hair.
3. After 30 minutes, use the special NYDA® comb to remove the dead lice. Then, leave non-greasy NYDA® in the child’s hair for 8 hours (overnight is ideal) to ensure that stubborn eggs (nits) are also dead.
4. Afterwards, comb and wash the hair with usual shampoo.
5. After 9 days, check for head lice; re-apply if required.
The British National Formulary’s recommendations on treatment for head lice:
“Head lice infestation (pediculosis) should be treated using lotion or liquid formulations only if live lice are present. Shampoos are diluted too much in use to be effective. A contact time of 8–12 hours or overnight treatment is recommended for lotions and liquids; a 2-hour treatment is not sufficient to kill eggs. In general, a course of treatment for head lice should be 2 applications of product 7 days apart to kill lice emerging from any eggs that survive the first application7.”
About the Survey
The NYDA® Head Lice Study was conducted using Ipsos MORI’s face-to-face omnibus survey, Capibus between 3rd and 14th July 2011. 999 interviews were conducted face-to-face in home amongst a national representative sample of Parents of children aged 0-15. The data presented are weighted to reflect the national profile.
How the cost of head lice was calculated
There are 9.4 million parents in the GB with dependent children aged 0-15 (Ipsos MORI’s Capibus GB data 2011) of which 17.4% parents (1,635,600) lost on average 1.7 days from work in the last year due to head lice infestations amounting to a total of 2,780,520 lost work days . 1,635,600 x 1.7 = 2,780,520 x £85.71 represents a loss of £238.3 million
Cost of lost working days
It has been calculated that every one day lost due to sick leave costs the nation £85.71 in lost business opportunities, reduced levels of service and output, wasted salary payments and overtime money to replacement staff.
How the number of school days lost by children was calculated
According to the Office of National Statistics Mid Year Estimate 2010 there are 11,271,700 million children under the age of 16. Of the 36% of children (4,057,812) who have been treated for lice 44% (1,785,437) had missed on average 1.54 days per year from school. This equates to children losing 2,749,572 from school due to head lice infestations in the last 12 months.
* The results of treatment should be re-checked after 8-10 days, if necessary, the application should be repeated.
** For those practitioners who have completed their training.
1. Ipsos MORI (2011) Capibus Survey. Head Lice Study. 08 July–14 July 2011
2. SymphonyIRI Group values sales, 52 weeks to June 11, 2011
3, Richling I. and Böckeler W. (2008): Lethal effects of treatment with a special dimeticone formula on insects (Orthoptera, Ensifera: Acheta domestica and Anoplura, Phthiraptera:Pediculus humanus) – Insights into physical mechanisms. Arzneimittelforschung 58 (5), 248-254.
4. Ovicidal effectiveness in vitro I [Data on file, 2007; unpublished]
5. Sonnberg S. et al. (2008): Ovizide Wirksamkeit von over-the-counter Kopflausprodukten [Ovicidal efficacy of head lice products]. Monatsschr. Kinderheilkd., Band 156, suppl. 1, S.82-83
6. Thomas DR, McCarollet L, Roberts R, et al (2006) Surveillance of insecticide resistance in head lice using biochemical and molecular
methods Arch Dis Child 91(9): 777–8
7. Joint Formulary Committee (2011) British National Formulary 62.September 2011. BMJ Group and Pharmaceutical Press, London
8. NPI (Sell-in data); December 2010
9. Heukelbach J, Pilger D, Oliveira FA, Khakban A, Ariza L, Feldmeier H (2008) A highly efficacious pediculicide based on dimeticone: Randomized observer blinded comparative trial. BMC Infect Dis 8:115
10. Oliveira FAS et al (2007) High in vitro efficacy of NYDA L, a pediculicide containing dimeticone. J Europ Acad Dermatol Venereol 21(10):1325–9
11. Richling I. and Böckeler W. (2007): Physical effects of the tracheal system of Lice (Anoplura: Phthiraptera: Pediculus humanus) – after treatment with the special dimeticone formula NYDA®. Poster presentation at the 41st Annual Meeting of the Austrian Society of Tropical Medicine and Parasitology, Vienna.
12. Burgess IF, Lee PN, Brown CM (2008) Randomised, controlled, parallel group clinical trials to evaluate the efficacy of isopropyl myristate/cyclomethicone solution against head lice. Pharm J 280: 371–5
13. Burgess IF, Lee P, Matlock G (2007) Randomised, controlled, assessor blind trial comparing 4% dimeticone lotion with 0.5% malathion liquid for head louse infestation. PLoS ONE 2(11): e1127
14. Anon (2007) Does dimeticone clear head lice? Drug Ther Bull 45(7):52–5
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