As a case of the Laplacian, the Helmholtz operator can beFactorized using perturbed Dirac operators. In this article,we proveSchwarz lemmas for solutions of perturbed Dira coperators in vectorSpace R3 by the integral representation formulas.As an immediate con-Sequence of the Schwarz lemma, one has Liouville's the orem for mono-Genic functions in Clifford analysis.