If you cannot trust God enough to keep your mouth from uttering words of unbelief, then you are actually cursing your wife and her sickness may very well remain---until you speak words of faith, believing that while you have not seen results of healing yet, you are trusting God full throttle for healing, and that it will come, in Jesus' name!
By your responses here tonight, you prove that your are thwarting your wife's healing by your attitude about God and His promises.
You know, Jairus' daughter more than likely didn't utter words of faith or the prayer of faith because she was sick to the point of death, but Jairus, her dad, knew right where to go and who to ask for healing---Jesus. He knew. So did the Roman centurion whose servant was sick, asking that Jesus heal him and that He need only say the word to do so. The young paralyzed man who was lowered down through the roof for Jesus to heal may not have had strong faith, but the faith of his loyal friends in Jesus and His ability to heal was more than enough for Jesus to raise him to his feet.
What kind of faith do you have on your wife's behalf?