How to treat it? Is this person Also self-employed?

"This notice provides guidance to employers on the requirement to report the amount of qualified sick leave wages and qualified family leave wages paid to employees under the Families First Coronavirus Response Act (Families First Act), Pub. L. No. 116-127, 134 Stat. 178 (March 18, 2020). Employers will be required to report these amounts either on Form W-2, Box 14, or on a separate statement. This required reporting provides employees who are also self-employed with information necessary for properly claiming qualified sick leave equivalent or qualified family leave equivalent credits under the Families First Act."