Medicine and faith

 Rashba (1:413):… It is important to know that if a person falls ill it is permitted to utilize medicine as long as he knows that the true cure is from G d and he should not think that the cure is solely dependent upon the right doctor and the right medicine… A sick person is not allowed to rely on a miraculous cure and avoid the doctor and cures - whether natural or supernatural. The fact that the Torah itself grants permission for a doctor to cure indicates that there is no theological objection to medicine… In fact Shabbos (67a) states that whatever produces medical cures - even if not in a natural manner - is not prohibited because of magic. Furthermore it is prohibited for a person to place himself in danger and to trust that he will be saved miraculously…