Table 2 Associations, Subtypes and Disease types of Acne

1	Hormonal disease
2	Inflammatory disease
3	Disease of defective follicularization
4	Propionibacterium acnes infection
5	Associated with topical exposure to halogens or oils.
6	Oral or intravenous intake of medications (e.g. lithium)
7	Related to excess sebum production and oily skin
8	Caused by topical or oral corticosteroids
9	Disease of auto-immunity
10	Toll like receptor 2 up-regulation related acne