oft to be honest i have no idea. contant looking after maybe and giving him into trouble when he does it. it sounds really wierd. i know my lill one scott used to be soo interested in his toes that he tryed to chew them off lol. but hasnt constantly done it if he was sick

my son does that, i think its just a stage he normally laughs when u take his hand out of his mouth like its funny.. hes not doing it much any more thank god! hes 15 months old in a couple days and hes been doing it for a LONG time

My son is almost 1 month and he does the same thing, I have to distract him from doing it, takes time... but I get him into something else eventually and when I do so he dosnt get sick and puke from doing it anymore. Goodluck!

My son is also 10 months and started doing this. I think he did it once and realized it was a great way to get our attention, because it sounds like he's choking and of course we respond. For about 2 weeks we have not been reacting when he does it and he seems to not do it as much.
Babies are smart and they learn fast what makes their parents jump.