Fox–Fordyce disease

Fox–Fordyce disease, or apocrine miliaria, is a chronic blockage of the sweat gland ducts with a secondary, non-bacterial inflammatory response to the secretions and cellular debris in the cysts. Hidradenitis is very similar, but tends to have a secondary bacterial infection so that pus-draining sinuses are formed. It is a very devastating skin disease that does not have universally curative treatments. Many that have this disease avoid sweat-inducing activities and prefer swimming as their mode of exercise.