Heat rash

Introduction Scorpion is the most acute skin inflammation seen in summer. The scorpion is caused by obstruction of the sweat hole, and it occurs mostly in the neck, chest back, elbow fossa, armpit and other parts. The child can occur in the head, forehead, and the like. At the beginning of the skin, the skin is red, and then a red papule or a herpes of the size of the needle appears, densely integrated, and some of the papules are purulent. After the birth of the scorpion, itching, pain, and sometimes there will be a burst of hot burning and other performance.

Cause

This disease is caused by excessive sweating in the hot and humid environment, sweat evaporation is not smooth, resulting in clogging of the sweat tube, rupture of the sweat tube, and sweat permeation into the surrounding tissue. When the temperature is high and the humidity is high, the skin lesions increase, the climate turns cold, and the skin lesions gradually subsided.

Under the following circumstances, it is prone to occur: in the hot and humid season, infants, young children and adults with excessive sweating and long-term bedridden patients whose sweating function is not yet perfect are caused by poor sweat excretion and blocked sweat pores. 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.

an examination

Related inspection

Skin lesion

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 often in the front, neck, chest, back, elbow, nest 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.

Diagnosis can be based on the above characteristics.

Differential diagnosis

Enthusiastic differential diagnosis:

1, white peony: Western medicine called crystal-shaped miliary rash, less common, occurs in patients with high heat and sweating, infants and children with weak constitution, common in the neck and trunk, for accumulation, superficial, crystal clear The blister has no redness around, the blister wall is thin, easy to wear, no pain, and the itch is very light. The course of the disease is short, and it usually takes about a week to absorb the crusting and desquamation.

2, purulent sputum: purulent sputum (purulent miliary rash) is a large superficial small pustule at the top of the scorpion. It is rare in clinical practice and often occurs in wrinkles, such as the flexor and genitals of the extremities. Children's head and neck are also common. Pustules are often sterile, or non-pathogenic cocci, but can be infected after ulceration.

3, rash-like rash: a red corn-like papule of the skin, accompanied by strong itching and tingling, common in hot and humid climate, caused by obstruction or excretion of sweat ducts.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.