English Teacher Question

Hey y’all

Right now, I’m living in the States in a career I’m not that happy with, and I’ve always wanted to be a teacher, so I’m thinking of moving to Thailand to teach English.

I have a concern about a medical condition that causes chronic pain, as I currently have a prescription for medical marijuana to help ease my symptoms.

I saw that some schools do drug tests and wanted to know if this is very common? Would schools be willing to hire someone if they had a prescription for this or would it be an immediate no?

If you have any experience or knowledge that might help, it would be greatly appreciated!

Thanks