So, I have conflict with this topic. Since Scripture is open to interpretation, I've found myself stuck.
I've read John G. Lake and Smith Wigglesworth, heard numerous radical stories of dramatic healings but...I remain skeptical.
I've been trained in deliverance and healing, both fairly reputable names/organizations.
Recently, Wigglesworth teachings have shown me that we 'walk by faith, not by sight'. Providing an example of a woman with a terminal illness who showed visible signs of the illness but she 'believed', eventually, after months, the congregation collectively 'rebuked' her then she prayed and miraculously and instantaneously she tangibly showed signed of a legit, verifiable healing.
John G. Lake and Wigglesworth have radical faith, imo. Their teachings speak to 'why aren't we doing what Jesus commanded us to do?'
Keeping this in mind, they both focused numerous hours, days, weeks, and even months in prayer and fasting. Their lifestyle was to pound on heaven's door for manifested healings.
My conflict is there were many times I'd be filled with the Spirit and nothing would happen.
The Holy Spirit is teaching me, what Jesus knew, "I only do what I see the Father doing."
When it comes to healings, let's be honest. Too many people claim 'healings' when...they aren't verified. God isn't scared of the light or truth. Let's be honest if a healing hasn't occurred. Wigglesworth was known to STAY at a home for numerous days to pray the family or person through their healing. He was honest that it wasn't a simple 'one prayer' and a manifested healing would happen.
John G. Lake taught to persist too.
I know your question is to the 'method' of praying for healing. Commanding, praying, etc. Heck there are handkerchiefs and shadows that healed people in Scripture.
As to the method, I'd strongly say, "What is God saying to you that your method should be for the specific event before you?"
I'm concerned when people seek the gift of healing. Because there is a lot of hype and expectation, I think the current charismatic culture is dishonest. When two or three days later, I see a person who said, "I'm healed." Still using crutches or a wheelchair. They then blindly, my opinion, say, "I still believe I'm healed."
Wigglesworth talks about this a little in his book titled, "Faith" but...knowing all that I wrote here, I find myself conflicted and a little frustrated.
God speed to your endeavors but I pray that you are at least honest and receptive to people when they say, "Nothing. No change".