Scabies is a parasitic infectious disease, which is caused by scabies, which can distinguish the eye in the form of small whitish point.
Scabies is caused by scabies - Sarcoptes scabiei. This tick is not an insect, it belongs to the family of arachnids. The carrier of the disease is precisely the female mite that lives close to one month. They are doing a horny layer of the skin under the moves, every day, laying there for two or three eggs, these eggs hatch after a while the larvae diflucan for ringworm. The larvae develop and become adult.
This whole process takes place in the skin of the patient. They left there all the products of its life. Then they mate, climbing on the surface of the skin. The males die soon after the fertilized female. Fertilized females back into the skin of its previous owner, or embedded in your skin new. Leaving his master, at room temperature, itch mite can live for two or three days. In the cold or boiling almost immediately he dies.
The female, which is fertilized, produces itch progress in the stratum corneum. This turn of the night, she lays two to four eggs. Ticks Skin keratin dissolved using proteolytic enzymes, which are contained in their saliva. Life expectancy of females is four to six weeks. The larvae turn into adult tick in ten to fourteen days. The mite can be contagious at any stage of development, but most of the infection from person to person is derived from fertilized adult female. In the daytime, mites are not active, they begin digging their moves in the evening, along with the patient is enhanced itching typical form of scabies. Scabies mites can multiply only in the skin of people.
Infection with scabies almost all cases of prolonged direct contact of the skin leather. The prevailing sexual mode of transmission of the disease. Children can often get infected is if they sleep with sick parents in the same bed. In kindergarten, a child can also become infected through direct skin contact. The incubation period of scabies is seven to ten days. For the disease characterized by itching that worsens at night. There are nodular or vesicular rash pairs that are localized in certain areas.
Itch moves in appearance are small, elevated above the skin stripes. They are thin, walk in a straight line or a zigzag. Often at the end of the course there is a clear bubble, through it you can see the white dot, is the body of the tick. At the site of the bite there are small nodules that may be covered by bloody crusts due to scratching. Primary rash appears erythematous papules.
They may be multiple and scattered, drain. After some time transformation vesicular papules - vesicles, or in some cases, and bullous rashes. The rash is caused not by the number of parasites, as a reaction to the mites waste products. Permanent damage to the skin can often be complicated by different types gnoynikovoy infection, as well as the development ekzemnogo process.
Basically itch rash localized in places such as the folds of flexion of the forearm, shoulder, wrist, especially the lateral surfaces of the fingers and folds between the toes, nipples region, especially in girls, buttocks, popliteal depression. In very young children - soles, face and scalp. The most important feature of the typical form of scabies is the presence of an itch, itch moves and primary rash.
In dermatology allocate such characteristic symptoms of scabies:
Symptom Gorchakov - on the elbows and in the area of the circle formed bloody crusts.
Symptom Hardy - there festering scabs and pustules on his elbows and their circle.
Symptom Sezary - palpation can be found in the form of light elevation itch moves.
Symptom Michaelis - arise mezhyagodichnoy crease impetiginoznye rash and bloody crusts.
In children, especially in infants, with mange and moves papulovelezami there vezikulourtikarnaya rash develops onychia, paronychia, soak. In children under six months of age scabies symptoms often resemble urticaria, characterized by a significant number of blisters. They combed, in the center covered with bloody crust, localized on the skin of the back, face, buttocks.
To diagnose this disease should first find itch moves. Spend microscopy fence elements of the problem areas of the epidermis. Just use videodermatoskop problem areas with an increase of six hundred times. Important in the decision of the diagnosis of scabies is the clinical picture - papulovezikuleznaya rash, itching night, family history.
Scabies never pass spontaneously. It may occur a long time, many months and years, sharpening times. To cure the patient with scabies mite eggs should be destroyed and of the mite. This can be achieved by using local media, the general treatment is required.