I think until you treat it.
Usually lice can last only a day or two off the head because of the lack of blood.
lice can last about as long as a day. but that is only if you know you have it and use treaments. also the lice will come back because all female lice do lay about 50-100 eggs.so when you have lice make sure to do the treaments about 2-4 for days out of 6 weeks.plus use the nit comb to try and get every nit out.lice DO NOT fly,jump,or leap they crawl very fast.
They will last until you decide to get rid of them. If you are having problems with lice then get rid of them as soon as possible because they are a big nuisance. They won't just go away. You have to make them go away. You can get rid of them for sure with mayonnaise. It suffocates the lice and their nits (eggs). They can last for years unless you handle it quickly and smoothly.
As long as you don't have lice anymore.
Head Lice live for 3 Months..
Yes Anne Frank had lice. She died fromTyphus disease which is from having lice tto long
Long: - Head lice are more common in long hair because it provides warmth.
It would take a severely long time to drown lice. Stores sell products that will kill lice on a variety of surfaces.
7-10 days. After that they hatch and you get new lice.
Pubic lice infestation has no long-term effects.
Head lice live for a while as long as they have contact with human blood. If lice do not have contact with blood they will only live for approximately two days.