1. What is the main etiology of acute dacryocystitis in this case?

2. What areas are important regarding the care of the patient in this case?

1. The main etiology of this case was the accumulation of toxic heat, qi and blood stasis, and disharmony between ying and wei qi.

2. Do not press the lesion, which could move the toxic pus inwards towards the pericardium and cause dangerous complications. The patient should avoid spicy and hot food and pay attention to eye hygiene. After completing the treatment of acute dacryocystitis, surgery is an option to cure the abiding ailment in order to avoid reoccurrence. Prior to the dissipation of redness and swelling, never use irrigation or probing of the lacrimal passage.