I have twin 22 month olds. One sucks her thumb and is constantly catching something. Last month she was even hospitalized with a virus and pneumonia. Last week cocksackie, this week strep and crup. This has been the worst year with calling out of work and the illnesses. I feel like if she didn't suck her thumb it would be better. My ped says not until 4 do I rear her if this. Anyone else have this problem? We are keeping them home this summer but I truly hope next school year daycare will be better an their immunities are built up.                
                             
        
Re: Thumb sucking= extra germs
I think at 2, you can start to talk about not sucking your thumb in public, that it's just for home and nap time, bedtime, etc. we do that.