Mucus flow from the eyes is determined by the color of the mucus and how much it is. If the mucus is yellowish, which tends to be a pus-like mucus state, there is a high probability of bacterial infection, such as bacterial dacryocystitis or bacterial conjunctivitis. Anti-inflammatory treatment with levofloxacin drops or tobramycin drops, gatifloxacin ophthalmic ointment, and ofloxacin ophthalmic ointment are usually needed to treat purulent mucus. If the mucus is mainly watery or white, and the eyes are itchy, it is likely to be caused by allergies, commonly seasonal or contact allergies, and requires anti-allergy drops, such as Olopatadine drops or Flumetron, Dimethoate, Emedastine drops, all of which can be used for anti-allergy treatment. Oral anti-allergy medications such as loratadine and cetirizine can also be taken, and the combination of medications will make the condition improve faster.