my son is 2.5 years old he suck thumb all the time. tried everything bitter nail paint to chili oil but nothing work. he always take thumb. even he talk with taking thumb. if we asked him to remove thumb he started shouting. what to do. very worried

A. hello dear if you have tried it and everything and still your child is not able to get rid of the habit then this can be the condition pica and to understand it properly you should consult with your doctor properly and start with the treatment if required