When your doctor gives you instructions for your health, listen up. If he starts predicting your fate, tell him that¹s none of his business.
Whether you will be healed is decided in a heavenly court by your Maker. The limitations of medical science haven¹t the slightest influence. Your job and your doctor¹s job is only to allow that blessing of life to enter into the everyday world in an everyday way.
If you ignore the need for this blessing to come into our world by natural means, and demand instead a supernatural miracle, you are shirking your responsibility. You are abandoning the earthly realm you were placed within to purify. You are disassociating the human act of healing from the Divine, declaring it foreign to G‑d¹s purpose. The blessing too may run away, seeing it has no door to enter.
But if you do whatever you can to prepare your world to receive this blessing — there is no shortage of means for the Healer of All Flesh to send His healing.

Listen to the professionals that are taking care of your health. After all, they chose the profession of healing humans, and that is a noble profession. Sure, they are human and make mistakes, but in general they look after your welfare. If unhappy with that specific physician search another to your liking.. The advances in medicine are because humans are allowed to investigate and improve t our health= refuah shleimah. .. However, no one, not even the best doctor can predict a person exact outcome. If experienced with such illness the doctors have averages of recovery but that is that. Sure, Hashem is in charge of the finality, yet this fragment advises us without a doubt to search good doctors and follow their advise..- otherwise it is called neglect.. and the rest trust H'.