Praying in agreement

I was having an infection in my body and I did all I knew to do about it. One Sunday morning at church when the pastor had anyone who needed prayer to come up. I knew the Holy Spirit prompted me to go up to our pastor & his wife and ask them to agree in prayer with me that the infection was going away & I was healed. They did prayer in agreement. I went to work the next morning with no change. As I sat in my cubicle the enemy was telling me I was going to die because the infection was too bad. I told the devil right then that I was healed & even if I died I would be with Jesus. Then the infection popped open & drained completely. I have not had any infection like that again.