Sir my daughater about 1 year 8 months old sallows a c 50 ps coin past 4 days. We taken X-ray and taken advised from pedriatric doctor he told you have wait up to 1 weeek.  any problem? already 5 days over the coin still not come in stool. Please give my some suggetions.
Put your child on solid diet (like banana/rice/HAWA/Isabel husk mixed with milk and sugar) and keep on following the coin by x-ray for its movement. If the coin doesn't come out in 3 days, still keep trying till pain or any other discomfort appears, in which case he might have to go for surgery.