There is no difference. When you lay hands on someone, you pray. Peter had to walk it out until everyone was healed everytime. He did not start out as perfect. He learned as he went. That is the goal. I have not been perfected, but watching someone healed is amazing! It builds and builds and is all good for His glory.
Consider Scripture:
1 Corinthians 12:28 And God hath set some in the church, first apostles, secondarily prophets, thirdly teachers, after that miracles, then gifts of healings, helps, governments, diversities of tongues.
29 Are all apostles?
are all prophets?
are all teachers?
are all workers of miracles?
30 Have all the gifts of healing? do all speak with tongues? do all interpret?
In verse 28 the various gifts are listed, and they are listed in order of importance. Notice:
FIRST apostles,
SECONDARILY, prophets,
THIRDLY, teachers,
AFTER THAT, miracles,
THEN, gifts of healings...diversitings of tongues.
Notice that the gift of healing is in the last group, with speaking in tongues being the least important of all the gifts, and yet these gifts are given the greatest importance in our society today. Of greater importance than these gifts is the gift of teaching which we still have today according to Eph.4:11.
We don't have the apostles today.
Prophecy has ceased (1Cor.13:8), and thus the function of a prophet has ceased. The sign gifts have also ceased which include most of the rest of the gifts. They were given primarily to the apostles as signs of their authenticity and that their message was authentic. They were also given as revelatory gifts.
The revelation is complete. We have the completed Word of God.
The apostles are dead. They don't need to be authenticated as God's messengers.
The gifts therefore have ceased.
There is no one on this planet that can heal as Peter healed in Acts 5:16. I have given that challenge many times, and no one can ever point to a single individual who has that gift, where one person can heal ALL who come to him without bias. It doesn't happen.
The gift of tongues is the gift of speaking in languages. Even Charismatic missionaries have to learn the language of foreign nations to which they are called. God doesn't miraculously bestow upon them the gift of that language of that nation. That would be a demonstration of the real gift of tongues/languages--not some gibberish which we hear today.
I have seen no one demonstrate the gift of miracles--no one.
Can you walk on water; calm the seas; feed five thousand with a few fish and loaves of bread, turn water into wine, etc.
No one can do these things. There is no such thing as the gift of miracles today. It has ceased.