There is a prayer circulating in the internet asking God to take away worries, fears and diseases. This prayer was meant for good but let us look at it. Where do worries, fears and diseases come from? God told us not to worry, fear not but obey and trust Him.
Let us trust and obey Him and that will take care of our worries, fears and by repentance from our sins that we may receive healing for our sickness and diseases.