winter pruritus
Introduction
Introduction to winter pruritus Winter pruritus is also known as sebacic eczema (asteatoticeczema), cleft eczema (eczemacraquele), winter eczema. It is mainly found in the skin of the elderly, especially the eczema-like dermatitis which is characterized by dryness and cracking in the calves, forearms and hands. The patient's skin can be seen to be cracked. The crack can be divided into three stages, called splitting, cracking and splitting. basic knowledge Sickness ratio: 0.1% Susceptible people: mainly seen in the elderly Mode of infection: non-infectious Complications: pruritus
Cause
Causes of winter pruritus
Cause (30%):
Sebum deficiency and water loss in the skin may be the main cause, and there are many factors that cause sebum deficiency. The skin is naturally dry with obvious sebum deficiency, age (elderly), disease, malnutrition, skin atrophy, hardening, sweating, endocrine Decreased function, environmental humidity, integrity damage of storage water in the corner layer, etc.
Pathogenesis (10%):
Certain diseases such as cancer, liver and gallbladder diseases, HIV infection, malnutrition, drugs or exposure to certain chemicals cause skin moisture reduction, dry skin, etc., which can cause itching of the skin, often scratching and then causing inflammation.
Prevention
Winter pruritus prevention
Precaution:
1. Bathe in the winter and wash your hair in a timely manner. It is not mistaken to think that there is air conditioning in the room, it is dry, and it does not need to be dried in time after bathing.
2, the diet should be light, easy to digest, eat more vegetables and fruits rich in vitamin C, keep the stool smooth, this can effectively excrete the sensitizing substances accumulated in the body in time. Do not eat foods that are allergic or irritating, such as fish, shrimp, crabs, etc. Foods that have been proven to be allergic, including similar foods, should never be taken. You should quit smoking and alcohol, do not drink strong tea or coffee. People with pruritus can take some vitamin E.
3, life should be regular, mood to be happy, do not fatigue, avoid anger and impatience. Go to bed early and get up early, do not drink strong tea and coffee before going to sleep to ensure adequate sleep.
4, appropriate participation in physical exercise to promote skin metabolism, improve skin absorption of nutrients, can also promote the secretion of sweat, reduce dry skin, relieve symptoms. Usually choose to walk, play badminton, practice Tai Chi, practice Qigong and other activities.
5, the housing should not be too dry, should not use soap when showering, you can use skin care products.
Complication
Winter pruritus complications Complications pruritus
The main cause of this disease is skin itching, so patients often scratch the skin to cause skin mucosal rupture and bacterial infection. In addition to the common S. aureus skin infections, it is rare to be herpes simplex virus infection, sputum, or infectious plaque. Some patients are allergic to food or something in the environment, sometimes Aggravate the symptoms of winter pruritus.
Symptom
Winter pruritus symptoms Common symptoms Calf itching dry rash skin splitting itching scales dry skin
The skin is dry, or there is a little soft and thin scales, the skin wrinkles are clear, the blood flow is slow, the local temperature is lower than normal, the palm skin is rough, especially at the finger pad, the lines are wide and deep, and the heavy ones have cracks, due to repeated sputum After the arrest, eczema with different degrees of inflammatoryness may occur, mainly with mound rash, blistering, erosion or exudation, repeated, chronic disease, and long-term unhealed.
The patient's skin can be seen to be cracked. The crack can be divided into three stages, called splitting, cracking and splitting. The splitting can be seen in the legs of the elderly in winter, especially the calf extension, natural square scales, like fish scales, edges. It can be slightly lifted, the center is sticky, the peeling is easy to fall off, but it grows again; there is no subjective feeling, or a slightly different degree of itching, the elderly have more scales, and the layers of the grasping fall off, such as a slightly deep crack, Like the turtle's back, it is called cracking, and the cleft palate mainly occurs in the hands and feet, deep and painful, and severe bleeding.
Examine
Winter pruritus examination
The disease is mainly due to lack of sebum in the skin and water loss may be the main cause. According to the polymorphism of the original rash in the acute stage, it is easy to have exudate, severe itching, symmetry attack and chronic infiltration, hypertrophy and other characteristics are not difficult to diagnose. Laboratory tests: no specificity, eosinophils may increase in the blood, suggesting that the disease and allergic factors are also relevant.
Diagnosis
Diagnosis of winter pruritus
The disease occurs in the elderly, but also in the autumn, the skin of the calf, especially the calf stretch side.
The skin is dry, the local temperature is lower than normal, the skin is rough, and the skin is cracked. It is seen in the legs of the elderly in winter, especially the calf extension side. It has natural square scales, like fish scales, the edges can be slightly lifted, the center is sticky, peeling It is easy to fall off, but it grows again; you can consider this disease.
