Size: Bed bugs tend to be bigger than lice, measuring about a quarter of an inch in length. In contrast, lice are smaller than an eighth of an inch long. Coloration is an important differentiator since bed bugs are brownish-red or mahogany colored, while lice are somewhat light whitish or gray in color.
Body lice generally are found on clothing and bedding used by infested people. Sometimes body lice are be seen on the body when they feed. Body lice eggs usually are seen in the seams of clothing or on bedding.
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) .
Nits are usually light gray, tan, yellowish, or white. "They can look just like a grain of sand, and they're not easily removed from the hair," says Paradi Mirmirani, M.D., a board-certified dermatologist with the American Academy of Dermatology. Nits usually take a little over a week to hatch.
Itching. The most common symptom of head lice is itching on the scalp, neck and ears. This is an allergic reaction to louse bites. When a person has head lice for the first time, itching may not occur for 4 to 6 weeks.
Some people may not have symptoms, particularly with the first infestation or when the infestation is light. It may take 4-6 weeks for itching to appear the first time a person has head lice.
You Have to Treat Them
Head lice will not go away on their own. If you think your child has an infestation, there are several steps you should take right away. Call your doctor to confirm the diagnosis. Notify your child's day care or school so other students can be checked.
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.
For example, hats, scarves, pillow cases, bedding, clothing, and towels worn or used by the infested person in the 2-day period just before treatment is started can be machine washed and dried using the hot water and hot air cycles because lice and eggs are killed by exposure for 5 minutes to temperatures greater than ...
If you are still worried about the cleanliness of your mattress when you are dealing with lice, there are a few things that you can do. First and foremost, strip all sheets and blankets from the bed and wash them on high heat. The heat should kill any lice that may be alive.
Head lice do not live on pillows or sheets, as they need to feed on the scalp of a host in order to survive.
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.
But when thinking about it rationally, most people agree that bed bugs are significantly worse than head lice: They suck more blood, and leave bigger bug bite bumps, on more different body parts. They can bite literally everyone in an environment, even pets, whereas lice only bite those they're living on.
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.
While there usually is more concern and discussion of lice infesting children than adults, without a doubt people of any age can become hosts for lice.
Most commonly, head lice are spread by direct head-to-head contact with an infested person. They may also be spread by sharing personal items such as combs, brushes, other hair-care items, towels, pillows, hats, and other head coverings. Dogs, cats, and other pets do not spread head lice.
Head lice are most active at night. Itching is the first and most common symptom but may not appear for weeks after contracting lice.
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. However, the lice could be in hiding.