While i cannot disagreed that praying for the sick is good, there is a malicious intention for some who uses "praying for the sick" for proselytisation purposes. My collegue which i mentioned earlier allowed our Muslim collegues to say some Muslim prayers for her son because they were genuinely sincere in wanting the sick boy to recover and that's all. There was no mentioning of the Islamic religion, or mention of how becoming a believer will cure that child. Similarly a Buddhist friend said some Buddhist prayers and that's it. But the church people were so different. My colleague did not know these church people and while she allow them to pray, they did so by physically touching the child which my colleague as a non-Christian felt uneasy. According to her, they then proceed to try to convert her by talking about their religious experience and even go into detail about how their religion is superior than hers. This went for for nearly an a quarter of an hour until the colleague ask a nurse for help. It was really an irresponsible and anti-social act.
It is quite easy to see a genuine person trying to assist a sick person and another person with ulterior motive to seek to proselytise. The hospital as well as all public space must be secular and not allow religon to create unnecessary despair and tension which can cause even more pain for the sick person, their family and friends. There is no excuse for this.