You are healed!   This is a profound statement when you consider that many of you are walking through sickness or diseases right now.  However, that is what God says you are: healed. 

“Surely He has borne our griefs (sickness) And carried our sorrows (Pain); Yet we ^]esteemed Him stricken, Smitten by God, and afflicted.  But He was wounded for our transgressions, He was bruised for our iniquities; The chastisement for our peace was upon Him, And by His stripes we are healed.”  Isaiah 53:4-5

Now the question is: how do you appropriate what Jesus has already bought for you?  

Since this is part of the atonement, all you need to do is believe and receive.