S.C. Code Ann. § 40-37-210
(C) All investigations and proceedings undertaken under the provisions of this chapter are confidential.
Every communication, whether oral or written, made by or on behalf of a complainant to the board or its agents or a hearing panel or a member of a hearing panel, pursuant to this chapter whether by way of complaint or testimony, is privileged; and no action or proceeding, civil or criminal, may be brought against a person, by whom or on whose behalf the communication was made.