I recieved a steroid injection 7days ago for bronchitis. Shortly after this injection I started to hiccup ,have been to urgent care where I recieved thorozine that did not work, emergency room several days later and recieved valium which is also not working. This is the 2nd time this happened and lasted 6days had forgotten about it until now. What causes this and is there anything that can be done about it. Makes my chest hurt because it never stops.