S.G.
Gina, thanks for mentioning my name!...My perk is up and running for those who were having a hard time finding it. Website is: www.thumblady.com
This is such a tough engrained habit, and the kids really respond to a positive approach...praise for not sucking, incentives, etc. around age 4 or so. And, if a child is struggling, it's OK to ask for help! Thanks again! G., as far as your comment, 11 months is an age where many children are exploring the world around them, especially with their mouthes, and it's a challenge to fight "Mother Nature". Substituting a toy at a critical moment may deter him for the moment, but one might ask since you had mentioned he is "cutting teeth" if he is using his poor little thumb as a teething ring. :( "The Thumblady".