HEAT RASH ON BUTTOCKS CRACK SKIN
They all are especially at risk if they are immobile for long periods of time and parts of the skin aren't exposed to circulating air, which results in the inability of the sweat ducts to "breathe" (evaporative cooling). Newborns, infants, the elderly, and obese individuals with large areas with skin-on-skin contact areas (for example, a large overlapping area of abdominal fat) are at risk for developing heat rash. Anything that makes you sweat heavily, especially if you're not wearing clothing that allows the sweat to evaporate, can trigger heat rash. People living in the tropics are far more likely to have heat rash than are people in temperate climates. Heat rash can also occur in people who are confined to bed for long periods, especially if they have a fever.įactors that make you more prone to heat rash include: Overheating in general - dressing too warmly or sleeping under an electric blanket - can lead to heat rash. Intense exercise, hard work or any activity that causes you to sweat heavily can lead to heat rash. 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. They can rupture more easily, trapping perspiration beneath the skin. A newborn's sweat ducts aren't fully developed. It's not always clear why the sweat ducts become blocked, but certain factors seem to play a role, including: Instead of evaporating, perspiration gets trapped beneath the skin, causing inflammation and rash. Heat rash develops when some of your sweat ducts clog.
Increased pain, swelling, redness or warmth around the affected area.See your doctor if you or your child has symptoms that last longer than a few days, the rash seems to be getting worse, or you notice signs of infection, such as: Heat rash usually heals by cooling the skin and avoiding exposure to the heat that caused it. It can also show up in the armpits, elbow creases and groin. In infants, the rash is mainly found on the neck, shoulders and chest. Symptoms:Īdults usually develop heat rash in skin folds and where clothing causes friction. Miliaria crystallina (B), another type of heat rash, appears as clear, fluid-filled bumps that produce no other signs or symptoms. Miliaria rubra (A), one type of heat rash, appears as red clusters of small blister-like bumps that can produce intense itching. Severe forms of heat rash may need medical care, but the best way to relieve symptoms is to cool your skin and prevent sweating. Some forms of heat rash feel prickly or intensely itchy. Symptoms range from superficial blisters to deep, red lumps. Heat rash develops when blocked pores (sweat ducts) trap perspiration under your skin. Heat rash affects adults, too, especially during hot, humid weather.
Heat rash - also known as prickly heat and miliaria - isn't just for babies.