Description, Causes and Risk Factors:
Alternative Name: Crystal rash, sudamina.
In normal conditions, the skin functions as body temperature adjustment with environmental temperature. In the skin, the function of sweat glands (the coil glands of the skin that secrete the sweat to enable evaporative cooling in a hot environment or in response to emotion) help the body to adjust the temperature.
Miliaria crystallina causes when sweat glands blockage is in the top of the upper layer of skin (epidermis). Sweat retention occurs in the stratum corneum with the production of discrete but agglomerated, superficial (almost on the surface of the skin). Pin-point, crystal-clear, translucent vesicles which can be easily rubbed off.
This type of rash is common in babies under two weeks old, as well as adults who have a fever or have recently entered a tropical climate. This rash is usually short-lived and doesn't require any treatment.
Although it affects people of all ages, it is especially common in children and infants due to their underdeveloped sweat glands.
Miliaria crystallina begins with excessive perspiration usually in a hot, humid environment. The perspiration damages cells on the surface of the skin forming a barrier and trapping sweat beneath the skin, where it builds up causing the characteristic bumps. As the bumps burst and sweat is released, you may feel the prickly, or stinging.
Factors that influence the occurrence of miliaria may include:
A lack of good air ventilation.
Too thick and tight clothes.
High humidity allows your body sweat.
Symptoms of miliaria crystallina include small red rashes, called papules, which may itch or more often cause an intense ''pins-and-needles'' prickling sensation. Your child may feel fatigued and become irritable and intolerant of heat, due to little or no sweating at the affected areas.
Differential diagnosis may include:
Erythema toxicum neonatorum.
Miliaria crystallina is typically diagnosed based on the characteristic appearance of the affected area. No tests are needed to diagnose prickly heat. However, it is important to see your doctor to rule out any other conditions that could look similar or those that could be causing it
Treatment of Miliaria crystallina is with talcum powder massage, or application of calamine lotion. Treatment consist in prevention of excessive sweating by reduced physical exertion, light diet, light and loose cotton clothing, cold baths and vitamin A.
Remove any occlusive clothing, limit activity, and seek air conditioning or any cooler environment.
Cool compresses can also help with the discomfort of heat rash.
Make sure your child is drinking lots of fluids.
Prevention and treatment of miliaria crystallina consist of controlling heat and humidity.
NOTE: The above information is educational purpose. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition.
DISCLAIMER: This information should not substitute for seeking responsible, professional medical care.
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