There are some arguments against healing by Christians. The first is that healing was meant for the early years of the Church in order to give weight or proof to the Gospel but it was not meant to continue and is not necessary now. (Again, I give only the briefest summary here.)
My response is that healing never completely died out in the Church and the Gospel still needs to be preached with signs and wonders. People still get sick today and seek healing. God still heals today.
The second argument is that it is not always God's will to heal. There are a couple of responses to that. If we don't know whether or not it is God's will to heal someone (and, as I pointed out before, Jesus healed everyone who came to him in faith asking for healing), why not pray until we know God's will and then pray in accord with what we have discerned of God's will? That way we are praying in accord with God's will.
God does not "put" any sickness on us; God does not make us sick. God is all good. Jesus came that we might have life to the full, abundant life (John 10:10). Nowhere does Jesus say, "My Father gave you this sickness so that you could learn ...."
Let us pray. Father, show us your will regarding healing today. Show us what it means to have life to the full, to have abundant life.
I started this website and blog on May 1, 2012. I am a Catholic who has been in ministry for many years. I first developed what I would call a close relationship with Jesus in the early 1970s. Ever since then I have been praying with people for healing and other needs. It is because I have seen so many of these prayers answered that I am so bold as to offer to pray for you individually through this website and phone line.