First and foremost, you should seek immediate medical attention. Only a medical professional can assess and treat your injuries. If you are able, you should get the names of witnesses without making any statements of fault, take pictures of the accident area and contact your insurance company if you have one. Then, it is imperative that you immediately contact an experienced personal injury attorney. The first days after an accident can change the course of the outcome. It is very important that you have an advocate before the other side's attorney or insurance company contacts you or your family.