My son has small long black bugs in his hair which is very thick. i'm black and was trying to determine what it is and what i can do to prevent it spr?

Need special shampoo: A medicinal shampoo, such as Nix (permethrin), is needed to kill lice and their offspring. There are several over-the-counter products to choose from. The key is to get rid of the eggs and kill the hatched lice before they reproduce. If any eggs survive (they are on hairs, near the scalp), the cycle just begins all over again. Without Nix, a person must pick off every egg and crush every louse.