Is there any harm in cold turkey off of percocet? No, generally not at all. Its not fun, but opiate detox will not kill you. **If you have any medical conditions like heart issues or blood pressure issues etc you should really talk to your doctor.**
Generally though, cold turkey off of opiates is safe, but miserable.
Depending on how long you've been on them, the physical withdrawals last about a week or so with day 2-4 being the toughest (at least in my opinion). If you haven't taken them too long, you shouldn't have anything to worry about.