No one can use your image for commercial purposes unless you give permission. The question becomes whether Facebook has the right to use the picture if your friend posted it without your permission. Likely the answer is no, unless there is something in Facebook's agreement that says that you have consented by your use of Facebook. You will have to check Facebook's terms and conditions to see if somehow you gave your consent. If not, your image cannot be used under the law of privacy rights/publicity of most states.
Answered on May 20th, 2012 at 4:27 PM