fiery erythema
Introduction
Introduction to fire erythema Erythemaabigne, also known as heat erythema, is a persistent telangiectasia reticular erythema caused by repeated exposure of local skin to high temperature stimuli that are not sufficient to cause burns. Sometimes pigmentation increases significantly, called stimuli Pigmentation. The disease is similar to the "fire hemorrhoids" recorded in the medical literature of the motherland. For example, "Surgery Qi Xuan" fire acne records: escaping from the fire, licking the skin for a long time, forming a sore with fire and sweating. basic knowledge The proportion of illness: 0.001% Susceptible people: no specific population Mode of infection: non-infectious Complications: depression
Cause
Cause of fire erythema
(1) Causes of the disease
Long-term local stimulation by high temperature below the burn temperature, such as long-term stove baking, sleeping enthusiasm, long-term high-temperature workers such as chefs, stoves, etc., or long-term application of infrared radiation, wax therapy, etc. due to repeated exposure to high temperatures The disease is ill.
(two) pathogenesis
Human skin is locally stimulated by high temperature below the burn temperature for a long time, and then flushing or temporary reticular erythema is caused by telangiectasia and hyperemia.
Prevention
Fire erythema prevention
Long-term repeated exposure to a warm environment should be avoided, and workers engaged in high-temperature environments should strengthen personal protection.
Complication
Fire erythema complication Complications depression
Due to the permanent expansion of the skin vascular network caused by local high temperature, the disease may cause increased keratinization of the skin, as well as skin blisters, etc., but infectious complications are relatively rare in this disease. Because the skin lesions can leave pigmentation after recovery, it can affect the integrity of the appearance. Patients with depression tendency can induce mental depression or even depression due to long-term skin damage. It needs to be paid attention to by clinicians. .
Symptom
Symptoms of erythema erythema common symptoms skin atrophy and hyperpigmentation
Mainly found in high temperature workers or long-term warming of the body, local skin exposed to the hot environment for several hours after the appearance of flushing or temporary reticular erythema (caused by capillary dilatation and congestion), such as repeated exposure to heat sources, erythema, It is purple or purple-brown erythema (caused by venous dilatation) with hyperpigmentation. It often has hyperpigmentation after healing. It can be blistered for a long time. Even blistering, mild skin atrophy and hyperkeratosis, distribution and heat loss of skin lesions The radiation area is the same, such as hot sleep, electric blankets, mostly occur in the back; sitting warmers mostly occur on the calf extension side, consciously have an itching sensation.
Examine
Fire erythema check
Pathological manifestations:
Mild keratosis, occasional thickening or keratinization of the granules; epidermal atrophy with vacuolar degeneration of the spine cells, occasionally heteromorphic nucleus, vascular dilatation of the dermal papilla with perivascular mixed cell infiltration, connective tissue of the dermal reticular layer Changes can occur, elastic fibers increase, thicken, pigmentation melanocytes, intradermal dermal melanin particles and hemosiderin infiltration.
Diagnosis
Diagnosis of fire erythema
1. Reticulated bluish: The damage is reticular vasodilatation and reticular reticular damage, which is symmetrical and diffuse.
2. Avascular atrophic skin heterochromia: telangiectasia and atrophy are more prominent.
