Excessive lacrimation (or tearing, i.e. watery eyes) comes about when the body produces too many tears or there are drainage issues with the tear duct. General causes are allergies, conjunctivitis, blepharitis and blockage of the tear duct among others and may also arise from eyestrain. From a Chinese perspective lacrimation issues are generally have relatively acute causes (colds, allergies, etc.) or more systemic causes - what we call liver fire, liver yin deficiency, etc. which accompany other issues such as headaches, insomnia and anxiety as examples.
Below you will find alternative and natural treatment options including those from a Chinese Medicine perspective for Excessive Lacrimation.