Chloracne is a skin condition caused by over-exposure to certain toxic chemicals that looks like common forms of acne that affect teenagers.
First reported in German industrial workers in 1897, at present chloracne is the only well established long-term effect of exposure to TCDD or dioxin, the contaminant found in one of the ingredients of Agent Orange.
At Seveso Italy, from a reactor to the production of hexachlorophene, a product relatively harmless used by industry, cosmetics, it would be escaping, because of an accident, dioxin, a chemical highly toxic and carcinogenic.