Because the active ingredients have remained the same all these years, new generations of head lice have become immune to them. Once lice become immune, the product no longer works. Scientists call this resistance.
The head lice may have become resistant to the treatment. If the treatment used does not kill the head lice, your health care provider and pharmacist can help you be sure the treatment was used correctly and may recommend a completely different product if they think the head lice are resistant to the first treatment.
Look for ingredients like ivermectin, which is effective with just one treatment, and doesn't require any nit-combing either. There are also prescription products that you can ask your medical provider for, that will help get rid of lice permanently and effectively.
Similar to superbugs that are resistant to antibiotics, super lice have developed resistance because of overtreatment and misdiagnosis of lice infestations.
There are two reasons for a recurrent lice infestation: The lice treatment you used didn't work. You or someone in your family came in contact with lice again.
Untreated head lice may degrade the scalp and affects it health and that of the hair. If the follicles become blocked, then hair loss may occur. It is hard to have well-conditioned hair if it is covered in head lice eggs, lice and bacteria.
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.
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.
Cover all of the hair with conditioner, detangle hair with normal comb and separate into sections. Then, using a fine long toothed metal lice comb, comb through the hair in sections. The conditioner does not kill lice but stuns them for about 20 minutes enabling easier removal.
Many people with head lice have no symptoms at all. It's impossible to diagnose head lice based on symptoms alone since the only symptom that matters is the presence of lice. However, experiencing the following symptoms suggests it is time to check the scalp: frequent unexplained itching of the head or scalp.
Body lice, close relatives of head lice, die when exposed for 5 min to a blow dryer delivering air at 50°C. Researchers in Salt Lake City, USA (Brad M Goates and colleagues. Pediatrics 2006;118:1962–70) have assessed six different methods of killing head lice using hot air.
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. Head lice, medically known as Pediculus humanus capitis, affects millions of people.
Adult lice can live up to 30 days on a person's body. To live, adult lice need to feed on blood several times daily. Without blood meals, the louse will die within 1 to 2 days off the host.
In the United States, infestation with head lice is much less common among African-Americans than among persons of other races. The head louse found most frequently in the United States may have claws that are better adapted for grasping the shape and width of some types of hair but not others.
Lice and eggs in clothing can be killed quickly by heat or cold. Wash clothes with water above 60 º C, or put the clothes in the dryer at this temperature for at least 15 minutes. A few hours in the freezer will also kill lice and eggs.
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 "repellents" electric combs for head lice. tree and plant oil treatments, such as tea tree oil, eucalyptus oil and lavender oil herbal remedies.
Good lice treatment back-up player
Treatment of head lice traditionally calls for the use of a lice shampoo containing permethrin or pyrethrins as a first salvo against head lice. Treatments made with these substances generally work well.
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.
Washing at a temperature above 130 °F will generally kill the insects. Alternately, try sealing the fabrics in plastic bags for 2 weeks. Soaking combs, brushes, and other hair care items in hot water for 5–10 minutes. Vacuuming the furniture, floor, and other surfaces that may contain lice or their eggs.
Just like with mattresses, lice can only live on any bedding—whether it's sheets, pillows, or comforters—for 1-2 days. Without a human scalp as a source for food (blood) for longer than 1-2 days, lice cannot survive.