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Oct 04, 2017 · Prickly heat, or heat rash, is caused by exposure to warm temperatures. There may be a warm and stinging feeling and a rash of small, red dots. It usually clears up on its own after a few days. It ...
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Heat rash (prickly heat) is a red or pink rash usually found on body areas covered by clothing. It can develop when the sweat ducts become blocked and swell and often leads to discomfort and itching.
Aug 13, 2018 · Miliaria rubra. Miliaria rubra, or prickly heat, is more common in adults than in children and babies. Miliaria rubra is known to cause more discomfort than miliaria crystallina because it occurs ...
- Atopic dermatitis.
- Christmas tree rash (pityriasis rosea)
- Contact dermatitis.
- Drug rash.
- Risk Factors
Heat rash — also known as prickly heat and miliaria — isn't just for babies. It affects adults, too, especially during hot, humid weather. Heat rash develops when blocked pores (sweat ducts) trap perspiration under your skin. Symptoms range from superficial blisters to deep, red lumps. Some forms of heat rash feel prickly or intensely itchy. Heat rash usually clears on its own. Severe forms of the condition may need medical care, but the best way to relieve symptoms is to cool your skin and prevent sweating.
Adults usually develop heat rash in skin folds and where clothing causes friction. In infants, the rash is mainly found on the neck, shoulders and chest. It can also show up in the armpits, elbow creases and groin.
Heat rash develops when some of your sweat ducts clog. Instead of evaporating, perspiration gets trapped beneath the skin, causing inflammation and rash. It's not always clear why the sweat ducts become blocked, but certain factors seem to play a role, including: 1. Immature sweat ducts.A newborn's sweat ducts aren't fully developed. They can rupture more easily, trapping perspiration beneath the skin. Heat rash can develop in the first week of life, especially if the infant is being warmed in an incubator, is dressed too warmly or has a fever. 2. Tropical climates.Hot, humid weather can cause heat rash. 3. Physical activity.Intense exercise, hard work or any activity that causes you to sweat heavily can lead to heat rash. 4. Overheating.Overheating in general — dressing too warmly or sleeping under an electric blanket — can lead to heat rash. 5. Prolonged bed rest.Heat rash can also occur in people who are confined to bed for long periods, especially if they have a fever.
Factors that make you more prone to heat rash include: 1. Age.Newborns are most susceptible. 2. Tropical climates.People living in the tropics are far more likely to have heat rash than are people in temperate climates. 3. Physical activity.Anything that makes you sweat heavily, especially if you're not wearing clothing that allows the sweat to evaporate, can trigger heat rash.
Heat rash usually heals without problems, but it can lead to infection with bacteria, causing inflamed and itchy pustules.
To help protect yourself or your child from heat rash: 1. Avoid overdressing.In summer, wear soft, lightweight, cotton clothing. In winter, children should dress only as warmly as an adult. 2. Avoid tightfitting clothesthat can irritate skin. 3. When it's hot, stay in the shade or in an air-conditioned buildingor use a fan to circulate the air. 4. Keep your sleeping area cooland well-ventilated.