The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
In Chinese Medicine excessive tearing can be treated by one herbs that we have on record. Here is the list below.
Because it is a herb specifically indicated to treat excessive tearing as can be seen on Puncture Vine Fruit's page.
Its main actions are: Calms Liver-Yang. Clears Wind-Heat and clears the eyes. Invigorates Liver Qi by removing Stagnation. Relieves itchiness.