Head lice are parasites that are easy to differentiate from dandruff. And no, they do not like dandruff; they love your blood and so, they feed on it. They do not flourish if the dandruff is co-existing on the scalp. Generally, dandruff does not curb the head lice's growth.
False. Lice are equal-opportunity bugs, no matter how often you wash your hair or if you have dandruff. They are parasites, so they are attracted to human blood. Kids are more likely to get lice than adults.
Head lice feed on blood from the scalp. The female louse lays eggs (nits) that stick to hair shafts. Head lice are tiny insects that feed on blood from the human scalp.
The two look similar, but close inspection reveals key differences. Nits stick to the hair while dandruff flakes, easily falling off of hair. While dandruff is visible on the scalp, lice lay eggs on hair, not the scalp. Contagion: Dandruff is not contagious, but lice spread easily from person to person.
Dandruff is not a contagious skin condition, but head lice spread easily from person to person, especially in children or people who are around children often (like teachers, parents, or daycare employees). Rest assured, however, that lice are not known to carry or transmit diseases like other parasites.
Dandruff shampoos like Head & Shoulders work by using the active ingredient, zinc pyrithione. It helps protect your scalp from dandruff-causing oleic acid. It's been proven on dandruff, but does nothing to inhibit lice.
Nits are often confused with other things found in the hair such as dandruff, hair spray droplets, and dirt particles. If no live nymphs or adult lice are seen, and the only nits found are more than ¼-inch from the scalp, the infestation is probably old and no longer active and does not need to be treated.
Lice checks can be carried out in both wet and dry hair but we recommend wetting hair and using conditioner. Photo: Norwegian Institute of Public Health. Use a fine-toothed lice comb (most commonly used method in Norway (8, 9)). Comb systematically and thoroughly through all the hair, from scalp to hair tip.
But unfortunately, the nits will not simply fall out your hair. The lice themselves take 7 to 11 days to hatch, so after that what is attached to the hair is the empty eggshell or the dead nit. These will stay attached to the hair and as the hair grows you will find them further and further down the hair shaft.
Head lice survive less than one or two days if they fall off the scalp and cannot feed. Head lice eggs (nits) cannot hatch and usually die within a week if they do not remain under ideal conditions of heat and humidity similar to those found close to the human scalp.
The ladybug is the natural enemy of the louse.
Lice feed on human blood and can be found on the human head, body and pubic area. The female louse produces a sticky substance that firmly attaches each egg to the base of a hair shaft. Eggs hatch in 6 to 9 days. You can get lice by coming into contact with either lice or their eggs.
While head lice live in your hair and feed on your scalp, body lice usually live in your clothes and bedding. They travel to your skin several times a day to feed on blood. Your clothing seams are the most common places for body lice to lay their eggs (nits).
You can find head lice on the scalp, neck, and ears.
While both dandruff and head lice cause an itchy scalp that's really where their similarities end. The itching dandruff causes is caused by dry, flakey skin and often the clumps of skin can be felt in the hair. While the itching caused by lice is from the moving bugs. Occasionally lice can be felt moving in the hair.
Not everyone feels lice moving around on their scalp, but some people do. Dr. Garcia says that most of her patients say they “don't feel anything,” but others may get a creepy, tickling sensation as lice move around their head.
If you do not comb out all the remaining nits, they will hatch and restart the cycle in 7-10 days from that point. That's why we recommend 3 treatments over a 12-day period of time. This stops the life cycle of lice. These are nits at different stages and a louse.
Do not use a conditioner. It can keep the lice medicine from working. Rinse well with warm water and towel dry. Do not use the towel again until it has been laundered.
Items that cannot be laundered such as headgear, earphones, and bike helmets, can be placed in a plastic bag and put in a freezer. If the freezer is 5°F or lower, all lice and eggs should be dead within 10 hours. Also, keep items and areas off-limits to people for 48 hours to limit exposure to any live lice.
There are recent studies that show that treatment of lice with heat can be quite effective in killing head lice. Products such as Lousebuster are very effective but even a home hairdryer can successfully treat lice.
Comb dead and any remaining live lice out of the hair using a fine–toothed nit comb. If, after 8–12 hours of treatment, no dead lice are found and lice seem as active as before, the medicine may not be working.
Lice for Building Immunity
Recent studies have shown the benefits of having lice. While it may sound ridiculous and unbelievable, there's scientific evidence that a certain kind of louse can be beneficial in reducing the chances of developing immune deficiencies.
Children can have a few nits without actually having a case of head lice. Usually children have no more than 10 to 20 live lice. Good lighting is important when you are checking. Head lice move fast and are hard to see.
Typically, 10–15 head lice are found. The number of lice often depends on personal hygiene, for example, how often the person bathes, shampoos, or changes and washes his/her clothing.
If nits are yellow, tan, or brown, it means the lice haven't hatched yet. If the nits are white or clear, the lice have hatched and just the egg remains. Lice eggs hatch within 1 to 2 weeks after they're laid.