Bites of lice
Lice (pediculosis) is a disease that causes small insects that parasitize the skin and hair. On a person can live three varieties of lice: clothes (linen), head and pubic. Accordingly, there are three types of pediculosis. If a person is parasitized by several varieties of lice, then they talk about mixed pediculosis. The insect feeds on the host's blood, and its bites cause severe itching and inflammation of the skin. In addition, body lice can serve as carriers of dangerous infections. The egg lays the eggs on the roots of the hair, and the louse - in the folds of the clothes.
The appearance of the disease is facilitated by adverse sanitary conditions and population crowding. Epidemics of pediculosis occur during wars, migrations of peoples and other global stressful situations.
Interesting! Lice have been accompanying humanity since time immemorial. The custom of many peoples to shave their heads is explained by anthropologists as a fight against lice.
Let us consider in detail each type of disease.
Head lice is currently the most common among the inhabitants of our country. Outbreaks of the disease are observed during the return of children from places of general recreation - pioneer camps, dispensaries, campsites.
It is a small insect that lives only on the scalp. At representatives of a male can parasitize on a mustache and a ford. Lice do not fly and do not jump, they move with the help of six tenacious legs, creeping over small distances. The body of the parasite is elongated, up to 4 mm in length, transparent or light brown. Louse eggs are called nits. The head louse pins them to the host's hair somewhere about 2 cm from the roots. Nits look like white translucent capsules 1-2 mm in length. They can be mistaken for dandruff, but you will not be able to shake off the nits from your head.
The life span of an adult is 45-50 days. Eggs ripen under suitable conditions in a short time, and the larva appears already on day 4-5, and after 14-21 days reaches sexual maturity. One female lays about 300 nits for her life.
Where do head lice come from, and in what way are they passed from one person to another? There are several opportunities for infection:
- at contact with the patient;
- through hair care products - combs, scallops, elastic bands and the like;
- through bed linen;
- while swimming in the pool, lake or river.
Children are more prone to pediculosis, it often appears in preschool and summer camps. The disease is detected visually, when looking at the hair on the head see nit.
What are head lice afraid of and how to get rid of them?
How to get rid of head lice and treat bites
The pharmacy sells a wide range of insecticides aimed at destroying head lice. Here is a list of the most common drugs that fall into the category of pediculocides (lice and nits):
- serotassium ointment;
- crooked water;
- "Couple plus";
- The Knicks.
To treat bites you can use boric ointment or "Butadion". When buying a drug, be sure to read the instructions on how to treat head lice with it.
Some drugs do not affect the nits, so they need to be applied several times to destroy the hatched larva. In any case, after removing the lice, it is better to comb out the nits from the hair with a small comb moistened in a solution of table vinegar (dilute with water 1: 1).
A fairly time-consuming, but safe way to get rid of head lice at home is to comb the adult parasites with a small comb, and after 3-4 days to dry hair with a hot hair dryer, thus destroying the hatched larvae. Dry the mixture as long as the itching persists.
Simultaneously with the destruction of head lice, you need to boil or thoroughly iron all bed linen and personal clothes, check other members of the family.
The louse is also called underwear or underwear. At observance of rules of hygiene the disease meets extremely seldom. In their image of parasitic, louse-like lice are like bugs. They prefer to live in the folds and seams of linen and clothes, crawling onto the human body only in order to get drunk blood. Bites of lice are often mistaken for irritation or allergies, bites of other insects. On the abdomen, shoulders and buttocks there are dots and small pimples 2-4 mm in diameter, strong itching. Often develops an allergy to lice bites, accompanied by a strong reddening and swelling of the skin in places of injury.
Eggs, the louse lays on linen, gluing them to the fibers of the fabric.
Bites of lice can be infected and provoke pustular skin diseases. Also this parasite serves as a carrier of pathogens of infections - typhus and other rickettsiosis.
Grab the louse can be in case of contact with contaminated linen or clothes, often these are common areas:
- summer camps;
- sanatoria and rest homes;
- long-distance trains;
- fitting of other people's clothes.
How to get rid of lice and how to treat bites
If bites of lice are found on the body, measures must immediately be taken to destroy the insects in the apartment. Parasites quickly learn new space and actively multiply.
The whole body, clothes and premises are disinsected.
- Wash all clothes and underwear at high temperature and iron thoroughly, paying special attention to the seams.
- Take a hot shower with laundry soap. Wear clean clothes. The procedure should be repeated daily.
- Personal hygiene items and bedding - boil.
- Clothes and laundry before washing it is recommended to soak for 15-20 minutes in a weak solution of vinegar - this will weaken the chitinous shell of parasites and their eggs.
- For guaranteed disposal of lice, all clothing, linen, crevices, mattresses and pillows must be treated with insecticide. After washing, you must carefully ventilate all things.
In epidemics, the guaranteed destruction of lice and their eggs is achieved by the method of processing the material in the steam-formalin chamber.
Than to treat bites of linen lice? For the healing of the skin affected by the parasite, apply ointments and lotions:
- hydrocortisone ointment;
- balsam "The Savior";
- hydrogen peroxide - for primary disinfection.
Pubic louse, or carpenter - a small, wingless bloodsucking insect, parasitic mainly on the pubic area and around the anus, less often in the axillary region and other hairy areas of the body. Children can settle on their heads. The size of the parasite is 1-2 mm, it is almost impossible to see with the unaided eye.
Signs of infection:
- severe itching;
- redness on the skin;
- presence of nits hanging on the hair;
- on the underwear you can find red spots, which are secretions of these insects.
Without food, the pubic louse perishes within 24 hours, but can fall into suspended animation and remain in this condition for up to three months. Without the owner, the insect can not exist, so the easiest way to get rid of pubic lice is to shave all the hair on the body.
Pubic lice - treatment at home
Treatment of pubic lice at home can be done by the following methods.
- Shave all the hair on the pubic area and in the armpits. Skin in places of bites treated with 10% mercury ointment.
- Other folk remedies for pubic lice - decoction of crook, kerosene and dichlorvos - are not always effective and are quite toxic to humans, so it's better to buy special medications at the pharmacy.
- With eyelashes and eyebrows remove insects and their eggs can be mechanically (fingers or brush).
Preparations from pubic lice, which are sold in pharmacies:
- Spray-Pax aerosol;
- solution "Nittifor";
- emulsion "Pedilin";
- emulsion "MediFox";
- shampoo "Veda-2";
Since pubic lice is mainly sexually transmitted, visit a doctor to exclude other sexual infections.
Prevention of pediculosis
To prevent pediculosis, you must follow the rules of personal hygiene:
- regularly wash and change clothes;
- do not transfer things of personal use to other people;
- carry out wet cleaning in the apartment, clean carpets and upholstered furniture with detergents.
After returning from a long trip, you need to check hair and skin for nits and bite marks, wash and iron all clothing.