G.N.
My son started doing that at 1 or little later, and still does it from time to time and he is 2. My cousins son did the same thing. It could be that she is teething, I also tell my son NO NO, I would give him teething tablets and also distract him with a toy and it helps. You can get the teething tablets at Walgreens or Walmart, the name is Hylands Teething Tablets.
Hope that helps