<unk>  presents from birth to within the first 4-6 weeks of life. Common symptoms are open and closed comedones such as papules and pustules that occur most commonly on the face on the areas of the cheeks, chin and forehead. Less commonly, lesions can be present on the chest and back.
Neonatal acne
Infantile acne
Papular eruption of blacks
Arbor vitae 
Pomade acne
Tinea imbricata
Woolly hair nevus
Linea alba 