Prickly Heat
Prickly heat, also known as miliaria or heat rash, 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 Prickly Heat
- Overheating: Prolonged exposure to high temperatures can cause the skin's sweat glands to become overactive, leading to blockages and inflammation.
- Humidity: High humidity can prevent sweat from evaporating quickly, causing it to accumulate on the skin and clog pores.
- Tight clothing: Wearing tight or synthetic clothing can trap heat and moisture close to the skin, increasing the risk of prickly heat.
- Physical activity: Engaging in strenuous physical activity can cause excessive sweating, which can contribute to the development of prickly heat.
Symptoms of Prickly Heat
- Small, red or pink bumps on the skin, often with a prickly or itchy sensation
- Rash or blisters, which can be filled with fluid
- Itching, stinging, or burning sensations on the affected areas
- Redness and inflammation around the affected areas
Types of Prickly Heat
- Miliaria crystallina: A mild form of prickly heat characterized by small, clear bumps on the skin's surface.
- Miliaria rubra: A more severe form of prickly heat, marked by red or pink bumps and inflammation.
- Miliaria profunda: A deeper and more severe form of prickly heat, which can cause larger, more painful bumps and blisters.
Treatment and Prevention of Prickly Heat
- Keeping the skin cool and dry by taking regular cool baths or showers
- Wearing loose, breathable clothing to allow for airflow and moisture evaporation
- Avoiding strenuous physical activity in hot weather
- Using calamine lotion or hydrocortisone cream to reduce itching and inflammation
- Avoiding scratching the affected areas to prevent further irritation and infection
Complications of Prickly Heat
- Infection: Bacterial or fungal infections can develop if the skin is not properly cared for.
- Scarring: Severe cases of prickly heat can lead to scarring, especially if the bumps or blisters become infected.
- Heat exhaustion: Prolonged exposure to high temperatures and humidity can lead to heat exhaustion, a more serious condition that requires medical attention.
When to Seek Medical Attention
- If the symptoms worsen or do not improve with self-care measures
- If the affected areas become infected or show signs of infection, such as increased redness, swelling, or pus
- If you experience fever, chills, or other systemic symptoms
- If you have a weakened immune system or are taking medications that suppress the immune system
Article last updated on: 11th April 2025.
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