We do need to use English as the language here on Reef2Reef. Obviously, most people around the world speak other languages, but it helps to have a single language here. Your post translates from Chinese as "Be Careful".
Fwiw, Jay is probably correct, I had very similar symptoms when my fish had neobendenia flatworms aka eye flukes. Good news is black Ich and the flukes can be treated with the same med.