Hi doc, My son who is 3 yr and 7 month old is still suckinh his thumb finger.. how can i stop this activity of this

A. Depending on your child's age and ability, you might like to: give lots of encouragement – for example, give them a hug or praise to show that they're doing something good by trying to stop. use distractions – entertain them with a toy or give them a cuddle to distract them from sucking.