I know what you are going through. You're doing all the right things.

Milo started biting at around 16-18 months old. At first he would bite me and DH, mostly when he was having a cuddle, or getting dressed, and didnt want us to dress him, put his nappy on etc.

Then it started to happen at Childcare..to the point where we'd dread to pic him up for fear of signing the accident book.

I must say that the staff at his daycare were really helpful in helping us address the problem. They explained how to identify the situationsin when it was most likely to happen so that we could be on the look out and distract him or step in to prevent it from happening.

They also explained that at their age, the biting tends to come from frustration at not beng able to express themselves becuase they dont alwyas have the language skills to say what they are feeling. Its very different to an older child who may bite with the intent to hurt - at 18 months they dont always understand that biting will hurt.

they gave us a lot of info to take home and read as well.

If CC havent told you already, ask them what procedures they have in place to manage this sort of behaviour, and where you can see a copy of the procedures that the centre uses, it may be helpful for you at home as well.