2 doctors weighed in:

How can I tell if I have head lice are all killed?

2 doctors weighed in
Dr. James Ferguson
Pediatrics
1 doctor agrees

In brief: New activity

You can be infested with juvenile lice before they start laying eggs & not recognize the activity.
If you have removed the egg casings & killed the lice, you must wait out the next 2 weeks to see if you have got them all.Any that were missed or hatching new would take up to 10 days to mature & lay recognizable eggs.

In brief: New activity

You can be infested with juvenile lice before they start laying eggs & not recognize the activity.
If you have removed the egg casings & killed the lice, you must wait out the next 2 weeks to see if you have got them all.Any that were missed or hatching new would take up to 10 days to mature & lay recognizable eggs.
Dr. James Ferguson
Dr. James Ferguson
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