Thank you for all the input.
Egg may persist for a long time.
Repeated combing can remove eggs.
Each area should be combed repeatedly to remove the nits or eggs.
After combing please tell him to wash the comb in hot water
for a few minutes & clean with old tooth brush to remove any eggs or nits.
Lice often needs repeated treatment.
He can use it again after 7-10 days.
You are doing a good thing by washing clothes, bed linens.
If he does not see any living lice or egg, then he can visit the baby.
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