>>/896435/
What happened?
Yesterday I nicked a piece from the nail of my index finger with a chisel. Great fun. Did not hurt much, but it has that testicle shrinking property to it. Feels uncomfortable.
As for your problem, try to clean out those cuts, it looks like there are some dark stuff under the skin at some places. 
Is the foamy thing the hydrogen peroxide? I use iodine.