John MacArthur in his commentary on Matthew 8-15 says:

None of the gospel writers gives details of the healings; we are simply told that He healed them. But it is not hard to imagine the cries for help that mingled with shouts of joy, as some came to Jesus diseased and deformed while others were leaving healthy and whole. People who were sick went away cured; people who came with only one functioning arm or leg went away with two; and people who came blind and deaf went away seeing and hearing. People who had never spoken a word were now shouting praises to Jesus. People who had never spoken a word were now shouting praises to Jesus. People who had never walked a step were now jumping and running for joy.