Lice

this presentation is for children care providers whether in school or in any other facility where children are in close proximity making them more prone to infection.

1. Pediculosis ( LICE AND NITS)

2. Types
●Capitis ( on the head )
●Body lice ( live in clothing )
●Pubic ( pubic hair) scratching of this area can
lead to other types infection.

3. characteristics
●Size : 2-3 mm
●Life span : 1M
●Produce 7-10 nits/day
●Nits ( 6-10 days ) hatch to nymph which
become an adult in 10 days.

4. Common Myths
●Long hair or hygiene are cmn czs
●Lice can fly
●Lice lead to other diseases
●Hair needs to be shaved
●Can be contacted from animals
●Leads to hair fall

5. Facts
●Nits after they hatch ( 10D) need access to a
host in 2d
●Lead to secondary skin infection such as
impetigo, enlargement of lymph nodes of neck
and scalp
●Most common symptom is scratching

6. How to diagnose
●People may be mistaken about the proper
diagnosis of lice especially when dandruff is
present.
●The key difference is that lice produce sticky
material that let them hard to be removed.
●Also lice usually stay close to the scalp
whereas dandruff fall off easily.

7. Tx
●Drug should be applied for the right duration, then
hair should be combed.
●Itching may persist for several days.
●Further use of drug can dry the hair and lead to
severe itching ( dermatitis due to irritation of the
skin )
●Vacuum furniture and wash everything with warm
water to avoid a second episode and to protect
other family members.

8. Tx
Permethrin 5%Paralice
Paralyze lice
Preg +
2M
10 min
2 doses
V 7D
Malathion 0.5% Lotion
6 yo
Preg +
8-12 hr
2 doses
V 7 D
lindane 1% Preg -
Breast feed -
Shampoo
Last ditch
( neurotoxicity)
55 Kg
4 min
Lather ( ra8we)
1 dose
biococidine Parasidose
Dissolve glue,
dehydrate lice
and suffocate
Shampoo
3M +
Preg +
Asthma +
capitis 45 min
2 doses
V 5D
Ivermectin Paralyze licePO
Empty stomach
capitis 200 mcg/Kg
1-2 doses
V 7D