What does "prickly heat" mean?

Written by Zhu Zhu

Dermatology

Updated on September 25, 2024

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Prickly heat is the name of a disease, often characterized by the appearance of white spots, blisters, papules, or vesicular rashes on the skin, and it is usually accompanied by itchiness. The causes are generally related to the weather being too hot, high temperatures, and the inability of sweat to escape from the skin, accumulating on the epidermis and eventually leading to the occurrence of prickly heat. Overall, this disease is very common. Due to its skin symptoms and severe itching, it is advisable to treat it promptly. Moreover, paying attention to daily habits and ensuring good indoor ventilation can help prevent the occurrence of prickly heat.

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Written by Huang Ling Juan

Dermatology

1min 15sec

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The difference between eczema and prickly heat

Eczema and heat rash have clear differences, distinguished by their causes, affected areas, and symptoms. The cause of heat rash is mainly due to blocked sweat pores, typically triggered by hot and humid environmental conditions; eczema, on the other hand, is usually caused by allergic factors such as food allergies, pollen, dust mites, animal fur, etc., and is also related to disorders of gastrointestinal function and indigestion. The seasonal occurrence of the two conditions also differs. Heat rash usually occurs in the summer, while eczema can occur in any season and at any age. The affected areas are also different. Heat rash typically appears on the chest, back, inside the elbows, neck, and forehead, whereas eczema can occur on any part of the body. The clinical manifestations of the two are also different; heat rash involves inflammation of the sweat glands, with the skin turning red and a dense distribution of papules. Eczema, on the other hand, primarily features symmetrically distributed erythema and papules, and may also include exudation.

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Written by Tong Peng

Pediatrics

53sec

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How to remove baby's prickly heat

Baby prickly heat is mainly caused by the hot and humid living environment, which damages the skin. Therefore, it is important to enhance skin care, especially by improving the environmental temperature. Keeping the room ventilated by exchanging air is the best treatment method. If the skin symptoms are severe, Calamine lotion can be used, which can effectively alleviate the symptoms of prickly heat. The main treatment for prickly heat is prevention. Therefore, especially in summer, the clothes worn by infants should be loose and made of pure cotton. Avoid tight clothes or synthetic fabrics, as these can aggravate the symptoms of prickly heat by causing friction between the skin and the clothing. Also, pay attention to the diet and try to eat less spicy and stimulating food, choosing instead light and liquid-based foods. (The use of medication should be carried out under the guidance of a physician.)

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Written by Zhu Zhu

Dermatology

40sec

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How to use prickly heat powder?

Use of prickly heat powder, with the following recommended methods: First, if it is used on babies, be careful not to let the baby get the prickly heat powder into their mouth or eyes. When applying the prickly heat powder, try to apply it to the buttocks, armpits, or the neck and back area. Second, when applying it to skin folds, try to spread it out evenly and not let it accumulate in one spot. Use only a small amount each time, just enough to cover with a thin layer. Third, after using the prickly heat powder, cover it properly to avoid getting it wet.

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Written by Qu Jing

Dermatology

1min 15sec

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Are heat rash and prickly heat the same?

Heat rash, also known as miliaria, is actually what is referred to in medicine as herpes simplex. It is different from prickly heat. Herpes simplex is caused by a viral infection, specifically the herpes simplex virus. It is characterized by clusters of small blisters and often occurs at the junctions of skin and mucous membranes. It is self-limiting but tends to recur, especially when the immune system is weakened. On the other hand, prickly heat occurs in the hot summer months when high temperatures and humidity make sweat evacuation difficult, leading to narrow and blocked sweat ducts, which results in prickly heat. It is usually intensely itchy. Thus, it is advisable to avoid rapid changes in skin temperature, such as moving from sweating heavily to suddenly entering an air-conditioned environment. This can cause sweat glands to close while sweat is still being produced heavily, leading to prickly heat. Treatment for herpes simplex involves antiviral therapy, whereas treatment for prickly heat primarily involves cooling, inducing sweat, and astringent measures.

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Written by Zhu Zhu

Dermatology

40sec

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The difference between prickly heat and allergies

Prickly heat and allergies are two different diseases, each with many significant distinctions. First, prickly heat tends to occur when the temperature is high, the weather is hot, and the body's resistance is low, while allergies are likely to occur when the skin reacts to certain foods, weather conditions, or allergens, causing corresponding skin symptoms. The treatment for prickly heat primarily involves the use of cooling powders applied externally, while maintaining a cool environment and bathing frequently. Allergies, on the other hand, are mainly treated with oral antihistamines.