Is it actual camphor or just smells timber-like?

If it's real camphor wood then you can't get rid of it because it's the natural smell of the wood. The smell is repellant to silverfish and other vermin which is the reason why it's used! Mine still smells and it's 20 years old

If it's not and just regular timber, the smell will fade eventually or you will become used to it and won't notice!