Heat Rash

Heat rash, also known as prickly heat or miliaria, is a common skin condition that occurs when the skin's sweat glands become blocked and inflamed, typically due to hot and humid weather.

Causes of Heat Rash

• High temperatures and humidity, which can cause excessive sweating
• Tight or synthetic clothing that traps heat and moisture
• Overdressing or wearing heavy clothing in hot weather
• Physical activity or exercise that causes excessive sweating
• Certain medical conditions, such as eczema or psoriasis, which can increase the risk of developing heat rash
• Medications, such as beta-blockers and certain antidepressants, which can affect sweat gland function

Symptoms of Heat Rash

• Small, red or pink bumps or blisters on the skin, often in clusters
• Itching, stinging, or prickling sensation on the affected skin
• Redness and inflammation around the affected area
• Sweating, which can exacerbate the condition
• Fever, in severe cases

Types of Heat Rash

• Miliaria crystallina: a mild form of heat rash characterized by small, clear bumps on the skin's surface
• Miliaria rubra: a more common form of heat rash, characterized by red or pink bumps and inflammation
• Miliaria profunda: a deeper and more severe form of heat rash, which can cause larger, more painful bumps and fever

Treatment and Prevention of Heat Rash

• Stay cool and hydrated by drinking plenty of water and avoiding hot environments
• Wear lightweight, loose-fitting clothing made from natural fibers, such as cotton or linen
• Avoid strenuous physical activity in hot weather
• Use cool compresses or take cool baths to reduce body temperature and relieve itching
• Apply topical creams or ointments, such as calamine lotion or hydrocortisone cream, to reduce inflammation and itching
• Avoid scratching the affected area, which can lead to further irritation and infection

Complications of Heat Rash

• Infection, if the skin is broken or scratched
• Dehydration, if excessive sweating leads to fluid loss
• Heat exhaustion or heat stroke, in severe cases where the body's temperature regulation is impaired

When to Seek Medical Attention

• If symptoms worsen or do not improve with self-care measures
• If fever develops or persists
• If signs of infection, such as increased redness, swelling, or pus, occur
• If heat rash occurs in infants, young children, or people with weakened immune systems