I cant say for certain if it will heal it, but logic would dictate that it should help.

Skin tissue is largely collagen based but also makes use of a lot of iodine. With that in mind, ask yourself whats essential to collagen production? vitamin C and lysine. Some other aminos and supps probably wouldnt hurt either like proline and chondroiten.

Click on the "brief video" at the top for excellent doctor advice about your problem,
http://www.fascrs.org/patients/conditions/anal_fissure/
do whatever it takes to get soft stools. Note the Doctor talked about IBS which is inflamed bowels Iodine will definitely help IBS, and so will stop eating wheat products. Wheat devastates the bowels"
"Modern wheat is the perfect disrupter of bowel health
nobody escapes the bowel effects described below. Eat modern wheat and experience the bowel disruption it wreaks, plain and simple."
http://www.wheatbellyblog.com/2012/09/modern-wheat-a-terrorists-delight/
Read the book, "Wheat Belly"


Grizz