Well, generally speaking, watery eyes can be as minor as a nuisance and they can be an indication of a more serious problem. Of course, you should know that tears are necessary for the lubrication of the eyes and to wash away particles and foreign substances in or around the eyes. But on the other hand, if you suffer from excessive tearing, that can be a problem. For some people, water eyes will accompany with redness, itchy eyes, and puffy eyes too. To treat it, you can just apply over-the-counter topical anti-allergy drops like Zaditor or Alaway. And also, some prescription topical anti-allergy drops such as Patanol or Bepreve for your watery eyes can be used.