As simple as that may sound, we receive healing from God the same way. We take Him at His Word. We believe we are healed, not because we feel healed or look healed at this moment but because God said we are.
Without our asking Him to do it…while we were still living in sin and rebellion…Jesus paid the price for our forgiveness. With His own blood, He paid the debt we owed to God for every sinful thing we have ever done…or will ever do.