Medicine and faith are not in competition nor are they at odds with each other. Both are needed and both have their place in our life and mind.
The Lord has ordained certain laws and they are fulfilled in many ways.
There are some things which no one can do, but there are areas which must be accomplished by individuals.
Only God can bring and maintain growth, but there are things we can do to cooperate with His laws. He has chosen to reveal Himself and to reveal His power through our efforts The proper use of medicine is not a denial of the power of the Lord but the sensible use of the revealed truths of the Lord.
Luke 8:43
And a woman was there who had been subject to bleeding for twelve years, and she had spent all she had on doctors but no one could heal her.