Board Thread:Theories and Speculation/@comment-30241447-20180610110627/@comment-30323490-20180610121842

This might only be a Sasuke thing tho. I mean Sasuke can manipulate amaterasu as he desires thanks to his right eye. So it makes sense that he can manipulate it in such way that he doesn`t injure himself even on contact.On the other hand, if Itachi were to shoot amaterasu on a part of his own body, i doubt he wouldn`t be affected.