Obviously don't want to change your mind.
Alcohol too was used (in ceremonies) for healing, many people don't know that.
What's important to know is that these kind of substances/medicines let you relax below your mind, so you can take a break from the terror of the mind. Real healing happens cannot happen in this state. Real healing happens afterwards, once you are beyond the mind. This obviously can only happen from within, not from something externally.