One option is to deconstruct it. Open it, pour out the contents.
Depending on your tradition or beliefs, you could possibly do so at a crossroads, walking away without turning back; or into a flowing body of water, to wash away the 'energy' of the working.
I do not condone leaving non-biodegradable items in nature, so that rules out the bottle itself, and possibly some of its contents. That said, a trash can is an easy way to discard something to make it go away. There may even be -- depending on where you live -- a public garbage can on a street corner at a crossroads.
Re: Witch bottles By: Lark Moderator / Knowledgeable
Post # 4 Nov 23, 2017
As for the glass bottle itself, you could cleanse it so that you can reuse it for another purpose. Water and salt are a good way to start. Then pass it through smoke from incense. This gives you a four Element cleansing. Then visualize the item becoming clean and pure once again and push some energy into it to accomplish that end.