Prickly heat

Prickly heat, also known as miliaria, is a common skin condition that occurs in hot, humid weather conditions. It is characterized by small, itchy red bumps on the skin, often accompanied by a prickling or stinging sensation.

Causes

Prickly heat is caused by the blockage of sweat glands, which leads to the trapping of sweat beneath the skin. This can result in inflammation and the formation of red bumps or blisters. The condition is most common in hot, humid climates, but can also occur in cooler climates if the individual is overdressed or engaging in intense physical activity.

Symptoms

The primary symptom of prickly heat is the appearance of small, red bumps on the skin. These bumps are often itchy and may be accompanied by a prickling or stinging sensation. In severe cases, the bumps may develop into larger, fluid-filled blisters. The rash typically appears in areas of the body where sweat is most likely to accumulate, such as the chest, back, armpits, and groin.

Treatment

Treatment for prickly heat primarily involves keeping the affected area cool and dry. This can be achieved through the use of air conditioning, fans, or by wearing loose, breathable clothing. Topical treatments, such as calamine lotion or hydrocortisone cream, can also be used to relieve itching and inflammation. In severe cases, a doctor may prescribe a stronger topical steroid or an oral antihistamine.

Prevention

Prevention of prickly heat involves avoiding activities that cause excessive sweating, such as strenuous physical activity or wearing heavy clothing in hot weather. Regular bathing with mild soap and water can also help to keep the skin clean and reduce the risk of sweat gland blockage.

See also

• Heat rash
• Sweat gland
• Dermatology

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