A blocked tear duct, or nasolacrimal duct obstruction, occurs when the eye's drainage system is partially or fully obstructed, leading to excessive tearing, crusting, and irritation. While many cases—especially in infants—resolve on their own by age one, specific natural treatments can encourage drainage and provide relief.

Sometimes, the blockage isn't deep inside the duct but right at the opening (the punctum), caused by debris, makeup, or crusted mucus. Keeping the eyelid margin pristine is essential.

For chronic blockages, an ophthalmologist may perform a simple irrigation (flushing the duct with fluid) or a minor procedure to widen the opening.

Applying a clean, warm compress helps soften any dried secretions, reduces inflammation around the puncta (tear duct openings), and encourages the natural flow of tears.