Heat rash, also known as prickly heat, occurs when sweat ducts become blocked, trapping sweat under the skin. It is common in infants and children, especially during hot and humid weather. The rash appears as tiny red bumps or clear blisters and is often accompanied by itching, stinging, or a prickly sensation. Commonly affected areas include the neck, chest, back, armpits, and skin folds.

At Claire Derma, treatment for heat rash focuses on soothing the skin, reducing sweat buildup, and preventing further blockage of sweat glands. The dermatologist assesses the severity of the rash and recommends calming topical treatments, gentle skincare practices, and lifestyle measures to keep the skin cool and dry. Parents are also guided on clothing and environmental adjustments.