The kind of eyedrops that help for blocked tear ducts are antibiotic eyedrops, claims eMedicineHealth. Patients with blocked tear ducts should use antibiotic eyedrops four times daily for one week.
Typically, the use of antibiotic eyedrops follows probing, which is a procedure that doctors apply to unblock tear ducts, according to eMedicineHealth. The procedure involves the insertion of a surgical probe into the punctum in order to dislodge the blockage. Once the blockage clears, the doctor may test the results of the probing by inserting a small tube filled with a fluorescein dye into the duct. The dye in the tube moves to the nasal cavity if probing is effective.