The woman's genuine faith in touching Jesus' clothing is from a human standpoint, for, in reality, the power to heal is in Christ Himself (Mark 5:30-34). In touching Him, she is not thinking of His merciful and compassionate will, but of a physical healing power passing from His body to His clothing and then to the hand that touched it. She has a material conception of His healing power, a confidence that something magical flows through His clothes.
However, as physical and imperfect as the woman's faith is, Jesus does not scorn her and her limited belief. He uses His supernatural knowledge to identify with her, even though in the Jews' eyes this meant that He had contracted ritual uncleanness. Using what faith she has to glorify His Father, He heals her by an act of His divine will, bringing her to a higher, spiritual faith. Though imperfect, her faith is essentially genuine and accepted by God because, as soon as she touches the hem of Jesus' clothes, her flow of blood dries up, and she feels her diseased body heal.
Martin G. Collins
The Miracles of Jesus Christ: Healing a Woman With a Flow of Blood