prickly heat
Introduction
Introduction The scorpion is also called "hot sputum", "red malignant rash" is caused by excessive sweating in the hot and humid environment, sweat evaporation is not smooth, causing clogging of the sweat tube, rupture of the sweat tube, and sweat permeation into the surrounding tissue. Mainly manifested as small papules, small blisters, occur in the summer, more common in children with poor perspiration regulation and long-term bedridden patients. Excessive scratching due to itching can cause secondary infections, and folliculitis, spasms or abscesses can occur. basic knowledge Sickness ratio: 0.1% Susceptible people: no special people Mode of infection: non-infectious Complications: folliculitis
Cause
Scorpion cause
Poor sweat excretion (35%):
In the following cases, scorpion is prone to occur: in the hot and humid season, infants, young children, and adults who are not sweating, or long-term bedridden patients are poorly excreted by sweat and blocked by sweat pores.
Pathological changes (30%):
There are three steps in the development of scorpion: keratinous plug formation of the small sweat gland duct, catheter rupture and sweat extravasation to below the obstruction level. The level of catheter obstruction determines the type of miliary rash. The superficial horny plug in the cornea causes white sputum. The catheter ruptures just below the angle plug, forming a bulging transparent blisters, and the top is completely composed of keratinocytes. The deeper epidermis at the site causes red miliary rash, which can cause erythema and itching, which is caused by the enzyme released by sweat after the epidermal cells are damaged. The sweat duct at the junction of the epidermal dermis blocks the upper end of the dermis of the sweat tube, causing sweat retention in the superficial dermis, resulting in deep sputum formation.
Vitamin A deficiency (20%):
In addition, in patients with vitamin A deficiency, the stratum corneum of the skin is thickened, and the sweat gland ducts are swollen by the retained sweat, causing the sweat pores to narrow or block.
Prevention
Scorpion prevention
1. Make sure to bathe with warm water for 2 to 3 times a day to keep the skin clean and rub the mattress powder after bath. Don't use cold water to bathe when the child comes back from the outside. Because the cold water is poured, the sweat hole that was originally opened will suddenly occlude and sweat stay, which can easily lead to lice or aggravate the condition.
2. The child has a scorpion and should not apply ointment or oil preparations.
3. Avoid strong sunlight.
4. Diligently wear underwear and wear loose thin fabric clothes, so as to avoid the occurrence of lice.
5. A large area of scorpion venom should be treated in time.
Complication
Scorpion complication Complications folliculitis
Excessive scratching due to itching can cause secondary infections, folliculitis, spasms or abscesses.
Symptom
Symptoms of scorpion common symptoms purulent sputum, sputum, sputum, hot sputum, red rash, pediatric eczema blisters
1, red dragonfly:
(1) The basic damage is papules or a herpes of the large apex of the needle, surrounded by a blush, densely arranged, but not fused.
(2) more in the forehead, neck, chest, back, elbow fossa, armpits and other parts.
(3) consciously have itching and burning sensation.
2, white :
(1) Skin lesions are non-inflammatory needle size, translucent blisters, thin wall, easy to break.
(2) Occurs in the trunk, especially the chest.
(3) No symptoms.
3. Purulent sputum :
Induced by other dermatitis leading to damage, destruction or obstruction of the sweat tube before purulence occurs. The pustules are distinct, superficial and separate from the hair follicles. Itching pustules are most common in the rubbing area, the curved side of the limbs, the scrotum, and the back of the bedridden patient.
4. Squat :
It only occurs in the tropics and often occurs after severe redness. It is characterized by no itching, normal skin color, and deep white papules. A few minutes after sweating began to appear, and disappeared 1 to 2 hours after the sweat stopped. Occurs in the trunk and limbs.
Examine
Scorpion inspection
According to the environment in summer or high temperature damp heat or poor phoenix, small papules or small herpes on the head and face, torso, acute attack, no obvious symptoms, diagnosis is generally not difficult, no need to check.
Diagnosis
Dice diagnosis
1, red dragonfly:
(1) The basic damage is papules or a herpes of the large apex of the needle, surrounded by a blush, densely arranged, but not fused.
(2) more in the forehead, neck, chest, back, elbow fossa, armpits and other parts.
(3) consciously have itching and burning sensation.
2, white :
(1) Skin lesions are non-inflammatory needle size, translucent blisters, thin wall, easy to break.
(2) Occurs in the trunk, especially the chest.
(3) No symptoms.
3. Purulent sputum :
Induced by other dermatitis leading to damage, destruction or obstruction of the sweat tube before purulence occurs. The pustules are distinct, superficial and separate from the hair follicles. Itching pustules are most common in the rubbing area, the curved side of the limbs, the scrotum, and the back of the bedridden patient.
4. Squat :
It only occurs in the tropics and often occurs after severe redness. It is characterized by no itching, normal skin color, and deep white papules. A few minutes after sweating began to appear, and disappeared 1 to 2 hours after the sweat stopped. Occurs in the trunk and limbs.
