Girls, who did the child's tear duct probing?

Girls, who did the child's tear duct probing? We fight with blockage of the eye, we wipe with furacilin, we drip Ofloxacin drops according to the doctor's prescription and do massage of the tear duct until it helps, already three months he will be, soon his eye will not pass since birth. An ophthalmologist said if it does not pass within 4 months then they will probe. Who had such an experience tell about the procedure? If someone from Astana has done this, recommend doctors in advance, thank you!