Rewrite the Dirac conjugate of a product of spinors and gamma matrices as a product of Dirac and hermitean conjugates. This uses $$\bar\psi = i \psi^\dagger\Gamma^0\,,$$ together with $$\Gamma_m^{\dagger} = \Gamma_0\Gamma_m\Gamma_0 \,.$$ For example,
$$\displaystyle{}\bar{\Gamma^{m n p} \psi}$$
$$\displaystyle{}\bar{\psi} \Gamma^{m n p}$$