Hi there. I can totally relate to the frustrations when your LO bites you. Our son is 20 months old and he tends to bite me when he gets overly excited. He also bites me when breastfeeding and is now starting to hit and scratch at times. I know it's him testing out what other things his hands and limbs can do but it is definitely taking its toll.
What I normally do when he hits/bites,etc - I say "Biting hurts. Let's be gentle". And then I also say, "When I hurt someone, I like to say I'm sorry" and then since he also knows sign language I do the ASL sign for "sorry".
When he gets excited and bites my neck, I also remind him that instead of biting when we get excited, we can shake our hands and arms to release the excitement. We can also find our soft toys and bite on those instead of biting on people or animals.
I was reading another post about gentle guidance where the DD spits on others. One of the moms suggested to say "Spitting is not acceptable" and taking them away from the other person. Then saying what DD could do and suggested making it a game to spit in the tub or how far you could spit in the backyard vs. spitting on someone.
I thought of this and now am going to use that for also when my DS hits. Instead of hitting people, we can hit the drum (since he loves playing drums)...
these are just some suggestions...hope it helps... ;o)