What heat rash dots can look and feel like

Blocked sweat ducts can leave sweat beneath the surface and create clusters of tiny spots or bumps. They may feel prickly, itchy or tender, and can be more visible after heat, exercise or heavy clothing. Dots may occur on the neck, chest, back, groin or skin folds. [Skin Bumps](/symptoms/skin-bumps/) have many causes, so a clinician may need to inspect the pattern, surface and surrounding redness.

Cool the room or body area, remove damp clothing and rinse gently if sweat has collected. Pat dry, choose loose breathable layers and take breaks from tight equipment or occlusive products. Avoid picking, scrubbing, fragranced lotions and heavy ointments that may trap heat. If dryness follows, ask about [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/). A prescribed [Topical Corticosteroids](/treatments/medical-dermatology/topical-corticosteroids/) may be considered for selected inflammation, but the site and diagnosis matter.

Have the dots checked if they become painful, swollen, warm, pus-filled, crusted or blistered, or if they spread after cooling measures. Fever, marked weakness, breathing difficulty or a rapidly changing rash needs urgent medical attention. New [Skin Redness](/symptoms/skin-redness/) around the dots can reflect irritation or infection and should be judged with the other symptoms.

Ask whether the dots match heat rash, which products or clothing may be contributing, and how to prevent recurrence. Describe their color, texture, location, sensation, timing after sweating and whether fluid or crust has appeared.