Heat Rash
Medical Author:
Nili N. Alai, MD, FAAD
Nili N. Alai, MD, FAADDr. Alai is an actively practicing medical and surgical dermatologist in south Orange County, California. She has been a professor of dermatology and family medicine at the University of California, Irvine since 2000. She is U.S. board-certified in dermatology, a 10-year-certified fellow of the American Academy of Dermatology, and Fellow of the American Society of Mohs Surgery. Medical Editor:
William C. Shiel Jr., MD, FACP, FACR
William C. Shiel Jr., MD, FACP, FACRDr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
Heat Rash OverviewHeat rash is the generic group name for a number of skin problems that arise or worsen because of heat exposure or overheating. Common names for heat rash include prickly heat or miliaria. Other heat rashes include heat urticaria (hives) and sweat retention. Heat rash is prevalent in the summer months and particularly in humid climates. The condition usually is self-limited and resolves in hours to a few days without treatment. Rarely, it may be more severe requiring professional medical care. Heat Rash Types (Miliaria)Miliaria is the medical term for the heat related skin condition where tiny, pinpoint, pink to clear bumps form over a body area like the face or neck. It is caused when small sweat particles are trapped in the skin. This trapping of sweat may cause inflammation and itching around the sweat pores. Miliaria is very common in infants but may also occur in adults. This condition occurs especially after repeated episodes of sweating in a hot, humid environment. Miliaria may look like small clear blisters or like gooseflesh. There are four types of miliaria:
Heat Rash RisksAnyone can develop heat rash especially when in the certain environments. Some individuals are more prone to heat rash including:
Viewer Comments & ReviewsHeat Rash - Describe Your ExperienceThe eMedicineHealth physician editors ask:Please describe your experience with heat rash. Heat Rash - SymptomsThe eMedicineHealth physician editors ask:What symptoms did you experience with your heat rash? |
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Heat Rash
Fever in Adults Overview
A fever (also termed pyrexia) is a higher-than-normal body temperature. It is a symptom caused by a variety of illnesses.
Every one of us has experienced the wave of chills and exhaustion that a fever causes. Fever usually occurs in response to an infection or inflammation. However, many other causes are possible, including drugs, poisons, cancer, heat exposure, injuries or abnormalities to the brain, or disease of the endocrine (hormonal or glandular) system.
A fever rarely comes without other symptoms. It is often accompanied by specific complaints, which may help to identify the illness causing the fever. This can help the doctor determine which treatment is necessary.
- Normal body temperature can vary depending on the individual, the time of day, and even the weather. For most people, a temperature of 98.6 F (37 C) is baseline.
- Temperature is usually controlled by the part of the brain calle...
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Heatstroke »
Heat illness may be viewed as a continuum of illnesses relating to the body's inability to cope with heat.
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