Heat rash: Introduction
A heat rash is a mild type of skin rash that commonly occurs in hot weather or in a hot environment. Heat rash is also frequently called prickly heat rash, sweat rash, and miliaria. Heat rashes are most common in infants but can occur in children and adults as well. Heat rashes are not related or associated with allergies.
Heat rashes occur when heat or high temperatures cause sweating, which can block the pores of the sweat glands. Pore blockage traps perspiration under the skin, resulting in a rash. A heat rash appears as little red bumps and possibly small blisters. Symptoms of heat rash also include itching of the affected area.
The severity and location of a heat rash can vary between individuals, although a heat rash is generally not a serious condition. However, there can be complications in some cases. For more details on complications and additional symptoms, refer to symptoms of heat rash.
A diagnosis of heat rash can often be made by taking a thorough health history, including symptoms, and performing a physical exam that focuses on the rash area. No specific tests are usually needed, and diagnosis can generally be made by the appearance of the rash by a family physician, nurse practitioner, or pediatrician. However, if it is unclear what type of rash is present, a patient may be referred to a dermatologist for diagnosis and treatment.
Because the symptoms of heat rash may be similar to symptoms of other skin conditions, such as contact dermatitis and poison ivy, a misdiagnosis is possible. For more details about other skin rashes and diseases that can mimic heat rash, refer to misdiagnosis of heat rash.
Treatment of skin rashes includes keeping the skin clean and dry. For more information on treatment, refer to treatment of heat rash. ...more »
Heat rash: Skin rash due to hot and humid weather.
More detailed information about the symptoms,
causes, and treatments of Heat rash is available below.
Heat rash: Symptoms
Symptoms of heat rash can vary in intensity, frequency, and duration among individuals. Heat rashes are most common in infants but can occur in children and adults as well. Symptoms occur in hot weather, especially if it is humid, or in any condition that produces sweating, such as exercise. The symptoms of heat rashes are not related or associated with allergies.
Symptoms of ...more symptoms »
Heat rash: Treatments
Many cases of heat rash go away by themselves with simple treatments, such as wearing loose, cotton clothing, seeking air conditioning, and staying out of the heat.
Ice bags or cool wet compresses may be helpful to help relieve itching. It is generally not advised that people with a heat rash use any powders, creams, or lotions, which can cause further sweating and blockage ...more treatments »
Heat rash: Misdiagnosis
A diagnosis of the heat rash begins with taking a thorough health history, including symptoms, and performing a physical exam. A misdiagnosis is possible because the symptoms of the heat rash can be similar to symptoms of other types of rashes and diseases. These include diaper rash, psoriasis, scarlet fever, chicken pox, poison ivy, and contact dermatitis. ...more misdiagnosis »
Symptoms of Heat rash
Read more about symptoms of Heat rash
Treatments for Heat rash
Read more about treatments for Heat rash
Home Diagnostic Testing
Home medical testing related to Heat rash:
Wrongly Diagnosed with Heat rash?
Heat rash: Related Patient Stories
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Heat rash: Deaths
Read more about Deaths and Heat rash.
Alternative Treatments for Heat rash
Alternative treatments or home remedies that have been listed in various sources as possibly beneficial for Heat rash may include:
Heat rash: Complications
Read more about complications of Heat rash.
Causes of Heat rash
Read more about causes of Heat rash.
Disease Topics Related To Heat rash
Research the causes of these diseases that are similar to, or related to, Heat rash:
Heat rash: Undiagnosed Conditions
Commonly undiagnosed diseases in related medical categories:
Misdiagnosis and Heat rash
Mild worm infections undiagnosed in children: Human worm infestations, esp. threadworm, can be overlooked in some cases,
because it may cause only mild or even absent symptoms....read more »
Mesenteric adenitis misdiagnosed as appendicitis in children: Because appendicitis is one of the
more feared conditions for a child with abdominal...read more »
Poorly healing leg rashes a classic sign of chronic disease: Recurring leg rashes,
or poorly healing leg rashes, are a classic sign of undiagnosed diabetes,...read more »
Blood pressure cuffs misdiagnose hypertension in children: One known misdiagnosis issue
with hyperension, arises in relation to the simple equipment used to...read more »
Psoriasis often undiagnosed cause of skin symptoms in children: Children who suffer
from the skin disorder called psoriasis can often go undiagnosed.
The main problem is that psoriasis is...read more »
Children with migraine often misdiagnosed: A migraine often fails to be
correctly diagnosed in pediatric patients.
These patients are not the typical migraine sufferers, but migraines can also occur in children.
See misdiagnosis of...read more »
Read more about Misdiagnosis and Heat rash
Heat rash: Research Doctors & Specialists
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Hospitals & Clinics: Heat rash
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Latest Treatments for Heat rash
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Evidence Based Medicine Research for Heat rash
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Heat rash: Animations
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Research about Heat rash
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Prevention of Heat rash
Prevention information for Heat rash has been compiled from various data sources
and may be inaccurate or incomplete.
None of these methods guarantee prevention of Heat rash.
Read more about prevention of Heat rash
Heat rash: Broader Related Topics
Types of Heat rash
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Definitions of Heat rash:
Obstruction of the sweat ducts during high heat and humidity
- (Source - WordNet 2.1)
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