I started painting the texture of a model I scanned using photos of the scanned man, using stencil brush.
After I finished painting the front face and the left side I started painting the right one, and then everything went wrong- everything got horrifically blue and no matter what I do I cant get the texture blank again, or atleast white!
help! what can I do to start texturing again from the start?
Thanks in advance to all helpers.

[![enter image description here][1]][1]


  [1]: https://i.sstatic.net/Lube3.jpg