What is blocked tear duct? There is a common explanation-the pathway that carries tears from the surface of the eyes into the nose is partial or complete blockage. Blocked tear duct often occurs on new born baby. However, it is not absolute. In adults, the duct also happens and can be damaged by infection, injury, or tumor. Well, the most common symptom is increased tearing, which is noticeable during the first two to three weeks after birth. But relax. Blocked tear duct can be treated. Everyday you should clean the eyelids with a warm and wet washcloth. However, the most important point you must bear in mind is not use the same place to clean eyelids more than once at the same time. You also can massage eyes two to four minutes a day. For adults, the causes of the blockage must be treated. To sum up, blocked tear duct will clean by itself in six months for new born babies, but for adults will not.