Thumb-sucking can be a distressing problem for parents of small children. Although they might not know exactly why, parents understand that when thumb-sucking goes on too long, something is not quite right. They sometimes become anxious over their child’s thumb-sucking habit and may punish them severely for it. Yet, punishment can cause more problems than it cures. So, what is a parent supposed to do? The answer is that you can get thumb-sucking help from your local Markham ON dentist.