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Head lice can be difficult to treat due to the time-consuming and precise nature of treatment and high re-infestation rate.
In the past, traditional insecticides were used to treat head lice infestations but head lice would often develop resistance to them.
Therefore, these types of treatments have virtually been replaced with silicone and oil-based preparations which have a physical rather than a chemical action on lice.
After a head lice infestation has been confirmed you can treat the lice at home by wet combing the hair with a head lice comb or by using a lotion or spray that's designed to kill head lice (see below).
However, neither will protect against re-infestation if head-to-head contact is made with someone with head lice during the treatment period.
The wet combing method involves removing the head lice by systematically combing the hair using a special fine-toothed comb.
The comb's teeth should be spaced 0.2-0.3mm apart. Lice can be crushed or trapped between the teeth of nit combs with a tooth spacing of less than 0.19mm and remain unseen.
You can buy a fine-toothed comb from your local pharmacy or you can order one online.
Lotions or sprays don't need to be used for wet combing. However, to be effective, wet combing needs to be carried out regularly and thoroughly. The method you should use is described below.