What did Anderson silva get paid for last nits fight?
No, the combs remove the adult head lice but not the "nits" which are their eggs, which they stick to the base of the hairs. So if you have nits, coming out the adult lice will not remove the infestation as more lice will hatch out from the nits. As well as combing the hair you need to kill the nits with some proprietary medicine.
If someone in your class has nits, you do not have to stay far away from them. The fact is, even if you are sat right beside someone who has nits, you might not get them off that person. Nits don't jump, so unless your heads are right next to each other, as they would be if you were whispering something to them, it is unlikely that they will pass nits on to you.
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.