God's word has creative power and spiritual life: 

"For they are life to those who find them, and health to all their flesh."

Proverbs 4:22 (NKJV)

Search the Bible until you find God's words and promises about healing for your sickness. Read them, believe them, meditate on them, and confess the promises aloud to yourself and others.

The Israelites heard what Joshua said about the city of Jericho that was to be defeated. The people walked around the city 13 times, meditating on the promise of victory. But the promise of victory was not released until "they shouted with a great shout, that the wall fell down flat. Then the people went up into the city and took it." (Joshua 6:20, NKJV).

Perhaps they shouted: "Hallelujah!" which means: "Praise the Lord." That is, a confession of God's promise of victory. The confession was the "trigger point" for God to release His power so that the walls were broken down where they stood! 

There is something for us to learn here! 

"Let us hold fast the confession of our hope without wavering, for He who promised is faithful."

Hebrews 10:23 (NKJV)

Do we have any walls that need to be torn down? Don't forget the confession!