The symptoms of dacryocystitis may vary depending on the type of infection and the time of the attack. In the case of acute lacrimal sac infection, the main symptoms are redness and swelling of the lacrimal sac (the junction between the inner corner of the eye and the root of the nose) and pain, and in some severe cases, increased discharge and tearing, and even cellulitis of the eyelid. For patients with severe, fast-growing symptoms, antibiotics are used as soon as possible for anti-microbial infections, for example, antibiotics for bacterial infections. However, due to the presence of a local inflammatory infection, there is a risk that an abscess may eventually form and a surgical method of incision and drainage will be required, and this type of disease is prone to recurring episodes. In patients with chronic dacryocystitis, the main symptom is the presence of prolonged “tear overflow”, accompanied by a significant and persistent increase in discharge from the eye. Patients do not experience significant pain, but most of these conditions can significantly interfere with life and even cause secondary infections in other areas. The potential risk of chronic dacryocystitis is that if there is minor damage to the corneal epithelium, such as after using the naked eye, getting sand in the eye, or wearing contact lenses, it can develop into a corneal ulcer, which can seriously affect vision and eventually require a corneal transplant. Therefore, if there is this type of disease, the specific type of inflammation needs to be determined as soon as possible, and treatment should be considered as soon as possible.