miliaria

n. type of skin disease, prickly heat (Pathology)

Miliaria (miliaria rubra, sweat rash or prickly heat) is a skin disease marked by small and itchy rashes. Miliaria is a common ailment in hot and humid conditions, such as in the tropics and during the summer season. Although it affects people of all ages, it is especially common in children and infants due to their underdeveloped sweat glands.
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Miliaria /mi·li·a·ria/ a cutaneous condition with retention of sweat, which is extravasated at different levels in the skin; when used alone, it [more]Miliaria - Community and Resources

Noun
1. obstruction of the sweat ducts during high heat and humidity
(synonym) prickly heat, heat rash
(hypernym) rash, roseola, efflorescence, skin rash

(n.)
A fever accompanied by an eruption of small, isolated, red pimples, resembling a millet seed in form or size; miliary fever.