miliaria rubra(redirected from tropical lichen)
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an eruption of pruritic macules with small central vesicles at the orifices of sweat glands, accompanied by redness and inflammatory reaction of the skin.
mil·i·a·ri·a ru·bra(mil'-ē-ā'rē-ă rū'bră)
miliaria(mil-e-ar'e-a) [L. miliaria, pert. to millet (seeds)]
An inflamed papular or vesicular rash that results from obstruction of the flow of sweat from sweat glands, esp. by occlusive clothing in warm and humid conditions. miliary (mil'e-er?e), adjective
The rash often improves after the patient returns to a cooler climate or the affected area is cooled and dried.
apocrine miliariaFordyce-Fox disease.illustration
A noninflammatory eruption from sweat glands marked by whitish vesicles caused by the retention of sweat in the cornified layer of the skin, appearing after profuse sweating or in certain febrile diseases. Synonym: sudamina
A form of miliaria seen almost exclusively in the tropics, frequently following attacks of miliaria rubra. The affected area is covered with pale, firm, painless papules 1 to 3 mm across. These papules do not cause itching.