Zhengzhou takes a train to Nanning, Guangxi, and then takes a 3-hour bus ride from Peking University Passenger Transport Center in Nanning to Bama. The environment there is good for health, and it is for health. There are also many friends who have gone there to treat diseases and have improved. I suggest you take medicine with you, where the treatment effect should be much better. How long can I stop using insulin? No one can answer you. The medical facilities there are also ok. I hope your condition will get better! Health!