Most children usually ditch the habit of sucking between the ages of 2 and 4, while a few stops earlier, at 6 or 7 months. But if they still suck at th e age5, the American Academy of Pediatrics says it's time to intervene.
Thumb-sucking can cause long-term dental problems
At age 5, continued thumb-sucking can begin to cause damage. Sometimes there is no damage, and other times it can change the shape of the child's mouth. You can also purchase thumb sucking guard online via https://www.amazon.co.uk/Age-2-7-Stop-Thumb-Sucking/dp/B00VQU2DZS if you want your chikd to get rid of the thumb sucking habit.
For the most part, thumb-sucking is not dangerous, unless it lasts for several years. Plus if your child will stop sucking their thumbs and you do not need to intervene. Here are some ways to encourage your child to stop sucking their thumbs.
Identify situations where your child sucks their thumb. Whether they are tired, bored, or anxious? Teach them how to verbalize their feelings so that they can learn to identify their situation, and then, offer an alternative. For example, if they suck their thumbs when tired, alternate bids such as stuffed animals to help them fall asleep.
Set attainable goals. Start an honest discussion with your child to explain the consequences of continued sucking her thumb. The goal is to get their "buy-in" on a plan to transform what the bothersome habit.
Reinforce signs of positive change with small rewards. "Keeping the graphics board or progress with a list of objectives and benefits are very useful. And do not be too critical of each setback.