I had an exposure to my hands of Alkyl Dimethyl Benzyl Ammonium
Chloride almost a year ago.  The skin appears to be damaged.  If I bend
my fingertips the tops of them look chewed up.  The normally yellow
callus that covered my hands is gone, and there are a lot of fine lines
and wrinkles.  The lines before this occured have now become deeper it
appears.  I cut the outside of my hand on the refrigerator recently,
and what normally would have healed normally, has left a pink scar.  I
should also mention that the skin on my wrists and some ways up my arms
where the chemical must have flowed are also wrinkled and damaged.  I
didn't irrigate the chemical out of my hands, so the ph of my skin was
probably off for months, just guessing.

The question is, have I permanently burned off layers of skin from
hands or is the skin just damaged and will take some time to heal
completely?