One who is seeking health should remember not to place his faith in doctors, but rather in Hashem, who grants the doctors their ability to effect a cure. There is a famous story told of a man suffering from a terrible illness who traveled to the tzadik Rav Yitzchak of Neshchiz and begged him for a promise that he would be cured from his illness. Rav Yitzchak refused to grant such a guarantee, but the man continued to beg him. Finally, Rav Yitzchak told him, “It is possible that you will be healed, but I cannot promise with certainty that this will happen. The problem is that you have forgotten to place your trust in Hashem, Who alone can save you, since you heard that ‘there is a man from Neshchiz who is a wonder worker,’ and you placed your faith in him! When you again place your faith in Hashem Yisbarach, then you will merit your salvation!”