Infectiousness is present as long as the affected person is infected with mobile lice and has not yet been adequately treated. Individual first larvae, which may still hatch from the eggs on days after a specific head lice treatment, do not initially pose an acute risk of infection, but they should be removed within the following days by wet combing with a lice comb and an obligatory repeat treatment are killed or visiting lice doctors Boston will be better.
The head lice bites usually every 4–6 hours can lead to crimson urticarial papules and the main symptom of itching with corresponding scratchy effects excoriations and crust formation. Bacterial superinfections can give rise to the clinical picture of secondary impetigenized eczema preferably behind the ears, on the back of the head and in the neck. Regional lymph node swellings can also occur occipital and / or cervical lymphadenitis.
Adult lice can evade detection if there are only a few specimens on their heads. Eggs are detected more often, but here a distinction must be made between viable and dead eggs or empty egg shells. Developable eggs are more difficult to find in the hair due to their yellowish to medium brownish, possibly slightly grayish color. They usually stick to the hair near the scalp. The lice eggs are particularly easy to spot behind the ears as well as in the temples and neck area. They differ from dandruff or hairspray particles in that they stick very firmly to the hair and cannot be stripped off. The more conspicuous, whitish to pearly shimmering empty egg shells are easier to spot. Since head lice lay their eggs 1–2 mm away from the scalp.
Since head lice remedies do not reliably kill all eggs and, depending on the remedy and its application, larvae can hatch after the initial treatment, a repeated treatment with the head lice remedy must be carried out within a narrow time window on day 8, 9 or 10, optimally: day 9 or 10. This tight time frame results because larvae hatch up