Lice thrive in winter. Their survival and transmission is further enhanced by other factors at play in the wintertime, such as long haircoats and huddling behavior. The first indications of lice infestations in livestock are excessive rubbing (on things such as fenceposts and buildings) and licking.
Head lice can be active throughout the year, but they're especially active in the winter months. This is because head lice thrive in warmer and more humid conditions, and winter usually provides the ideal environment.
The peak season for lice infestation is August through October and again in January. Head lice are tiny parasitic insects that feed on human blood. Lice come in three forms: nits (eggs), nymphs (baby lice), and adults. Nits are white or yellowish-brown and about the size of a poppy seed.
In fact, summer months often spur an uptake in cases of head lice when children spend an extended amount of time together with sleepovers, camps, and family vacations. “Summer vacations when kids are sleeping together, or staying with other families, are opportunities for the spread of head lice,” Marnie and Lisa said.
A four to five degree rise in temperature is fatal for lice. They prefer cold environments where clothing layers provide a humid to dry gradient. They also flourish best in hot dry climates where a temperature gradient exists in clothing.
Washing, soaking, or drying items at a temperature greater than 130°F can kill both head lice and nits. Dry cleaning also kills head lice and nits. Only items that have been in contact with the head of the infested person in the 48 hours before treatment should be considered for cleaning.
Heat Method:
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.
Head lice are most active at night. They can cause such intense itching that your child could lose sleep over it. It's uncomfortable, but lice won't make you sick. They don't spread disease and they're not a sign that you're dirty.
Vinegar contains properties that kill and get rid of nits and lice. This mixture should be applied directly to the whole scalp. Mix 1 cup of vinegar with 1 cup of warm water. Next, distribute this mixture onto the scalp and cover your hair with a hair cap.
Saltwater will also kill lice, so if you live near an ocean, a swim would help. You can also put a shower cap on the head and heat the hair with a hair dryer. Heat will kill the lice. Body lice can be controlled by washing the person's clothing and vacuuming any beds or other furniture they may have used.
Head lice are common in children between the ages of 3 and 11 years old. These pests are more prevalent in Caucasian children. They are more frequently found in girls than boys. Head lice live in all types of hair, whether it's curly, straight, dyed or natural.
After each treatment, checking the hair and combing with a nit comb to remove nits and lice every 2–3 days may decrease the chance of self–reinfestation. Continue to check for 2–3 weeks to be sure all lice and nits are gone.
Life Cycle of Lice
If lice fall off the scalp, they will die within a day or two. The female louse can lay up to 8 nits per day. The eggs hatch in about a week (6 to 9 days).
Cold water does not kill head lice and nits, because it's above freezing. If cold water is dumped on the head, the lice will only cozy up closer to the scalp, hanging on tightly with their legs. If a louse somehow makes it into cold water, it may slow down some, but will die as a result of being removed from its host.
Lice can be hard to get rid of. If you still have lice 2 weeks after you started treatment, let your doctor know. Your doctor may want to try a different medication or repeat treatment in case any nits were left behind and hatched after treatment.
As with furniture and carpets, adult lice typically live for around 2 days on pillows and sheets without human contact. Nits will not hatch and will die within a week. People should machine wash any pillows or sheets someone with lice has used in hot water of more than 130°F (54.4°C) .
Coconut, tea tree oil, lavender, eucalyptus, rosemary, lemon grass, and peppermint are scents popularly believed to repel lice. Using any coconut scented shampoo and conditioner is an easy way to increase your defense. At 1% concentration, tea tree oil killed 100% of head lice after 30 minutes.
Spinosad (Natroba).
Spinosad is approved for adults and children age 6 months and older. It can be applied to dry hair and rinsed with warm water after 10 minutes. It kills lice and nits and usually doesn't need repeated treatment.
Avoid head-to-head (hair-to-hair) contact during play and other activities at home, school, and elsewhere (sports activities, playground, slumber parties, camp). Do not share clothing such as hats, scarves, coats, sports uniforms, hair ribbons, or barrettes. Do not share combs, brushes, or towels.
Can someone have nits but no lice? It may be possible to have nits but no lice. If a person cannot find any nymphs or adult lice in the scalp and the nits are more than a quarter of an inch from the scalp, these may be dead and from an old infestation.
A preventative shampoo and spray can break the life cycle. A shampoo that kills lice before they can lay eggs is critical for closing the “bridge” from one head to another. Ladibugs experts recommend parents seek effective, pesticide-free options.
If you see nits and small moving lice, you've likely had lice for 1.5 to 2 weeks. This is because you aren't seeing a lot of adult lice but are still seeing tiny freshly hatched nymphs. If you find generations of head lice, meaning different sizes including nits, nymphs, and adult lice: 2 weeks or longer.
Simply washing the items in hot water and drying them at a high temperature should get rid of the critters. The head louse (Pediculus humanus capitis) is easily killed by temperatures above 122 degrees Fahrenheit, and the typical residential hot water temperature is about 130 degrees.
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.
As previously discussed, hair color may kill the bugs, but with a full-blown infestation, can lice survive hair dye? Yes, they can. You may be successful at getting rid of some of the bugs with hair dye, or you may even use hair dye to get rid of all of them.