The first thing that you must do after any automobile accident is immediately seek medical attention. This is true even when you do not think you were hurt. Remember that many injuries may not be apparent right away. If you wait too long to see a doctor, it is very likely that an insurance company will claim that your injuries are not compensable because you did not treat them properly. Other important steps to take in addition to medical care include:
Take as many pictures of your accident scene as you can
Look for possible witnesses who saw your crash and get their names and phone numbers
Do not sign any documents or provide any recorded statements to an insurance company
When you are not able to do this yourself because you need medical attention, ask somebody you know to do these things for you. Contact a personal injury attorney as soon as you are able.