<unk>  occurs when the sweat gland ducts get clogged due to dead skin cells or bacteria such as Staphylococcus epidermidis, a common bacterium that occurs on the skin, which is also associated with acne. The trapped sweat leads to irritation (prickling), itching, and a rash of very small blisters, usually in a localized area of the skin.
Miliaria
Acne
Sequela
Tinea capitis
Capillaritis
Rosacea 
Rosacea
Ocular rosacea