hello doctor! my toddler was always licking soaps, dish wash bars , is it a kind of Deficiency ? r they just do by their habit

A. Pica is an issue which is common with kids rather like to have most of the inedible things available to them and sometimes it could be due to deficiency of calcium as well but to be more sure about it better to check with your doctor for the assistance they only can give you after examining the child