You can return to work and still get all of your medical treatment paid for. You can even get money in certain instances, and of course an award for any permanent damage is possible. You should speak with an attorney to discuss your personal circumstances.
You cannot be fired because you got hurt at work, or because you filed a claim for Workers’ Compensation. But that doesn’t mean your boss can’t replace you. Unless you have a contract with your company, or are a union member, New York gives companies a lot of latitude when it comes to discharging employees. However, if you believe you are the victim of discrimination, you can still pursue that case with the New York State Division of Human Rights.