A 5 - Response from online-eye-info.com/Angular Blepharitis
Thanks for your question
Angular Blepharitis is caused by Moraxella Lacunata or Staphylococcus Aureus and sometimes but rarely can be caused by herpes virus.
the signs that you mentioned are typically for Angular Blepharitis and the treatment is usually by Chloramphenicol eye drops or Erythromycin Ointment.
It is advisable to have ocular examination by cornea and anterior segment ophthalmologist because as i mentioned Herpes virus can be a cause and also sometimes blepharitis associated with dry eye and small corneal erosion.