Licking walls and chewing??????

Hi. I've not been on the forum for a while as things have been going ok ish with Kizzy. She is excercised and has lots of toys and gets played with all of the time, however whenever she gets the chance to she licks my walls, down to the plaster and then starts on that. or if any shoes or kids toys are left lying accidently they get chewed too. Also my skirting boards and door frames are pretty much damanged beyond repair now. Please does anyone have any ideas????
We've tried bones and had a bad scare when a piece got stuck inside her so she'sno longer given bones. She has raw hide bones constantly but it's like she's fed up with them.
I am at my wits end.
Kizzy is ten months old

Could it be caused by seperation anxiety? Mine have always done this as well but I've just used Bitter Apple or a different deterent on the problem areas and it has stopped.

We found a huge crate has been fantastic and saved our furniture. We leave a radio on and leave him with Nylabones and a stuffed frozen kong, these are not toys that he has access to when we are at home, which makes them a bit extra special for him.

woody was the same. he is 2 now and wasnt left in the house outside of his crate until now. believe there is something they like in wallpaper paste.

not sure how practical but i found vicks vapour rub put him off chewing but maybe keep everyhting out of reach such as shoes etc for a while

Thank you for the advice, a couple of people now have suggested a crate, I wasn't really sure of them before but I shall be buying one soon and will be painting the walls with vicks also.
Thank you

woody loves his crate - he is safe, the house is safe, he puts himself in there when feeling poorly too. vicks was my saviour!!!

If it's not a teething thing it could be seperation anxiety.