225 ILCS 57/50
It is a misdemeanor for any person, organization, or corporation to advertise massage services unless the person providing the service holds a valid license under this Act, except for those excluded licensed professionals who are allowed to include massage in their scope of practice. A massage therapist may not advertise unless he or she has a current license issued by this State. A massage therapist shall include the current license number issued by the Department on all advertisements in accordance with paragraph (4) of subsection (a) of Section 45. "Advertise" as used in this Section includes, but is not limited to, the issuance of any card, sign, or device to any person; the causing, permitting, or allowing of any sign or marking on or in any building, vehicle, or structure; advertising in any newspaper or magazine; any listing or advertising in any directory under a classification or heading that includes the words "massage", "massage therapist", "therapeutic massage", or "massage therapeutic"; or commercials broadcast by any means.
225 ILCS 57/50