K.G.
We had this problem at EXACTLY the same age. I was pregnant with #2 and was afraid my 1st born would chew him apart. I remember crying in the Dr's office...I was a little emotional. What finally worked was CONSISTANT redirecting. He was in daycare at the time too so those were the kids he liked to bite, not aggressively or unprovoked, but more like if he wanted a toy and someone else was tugging on it he would bite and love the reaction he caused. So, what we did was tell him "no biting, that hurts people" sternly and talking to him on his level and we removed him from the situation, i.e took the toy away from him, sat him somewhere else, etc. Time outs are not effective at this age due to developmental abilities/learning, etc. He just needs immediate consequences. He will throw a fit, but it is the 1st of many situations where you need to intervene. Rest assured, the biting will not last long as long as you continue to intervene each and every time. I can't remember exactly how long it took to change the behavior but I know that he was NOT biting when his brother was born 2 months later. For us, it meant really coming up with a plan for at home and at daycare that was the same so he knew what to expect. He is the only one of my kids (of 4) that has been a biter. Let me know if you have any other questions. I know this is a tough battle!