how long does it take for lice to show up
The life cycle of the head louse has three stages: egg, nymph, and adult louse. Nits are lice eggs. They are hard to see and are often confused for dandruff or hair spray droplets. The nit is laid. by the female near the base of the hair shaft and usually takes about 8-9 days to hatch. Viable eggs are usually. located within 6 mm of the scalp.