There are believers who wrongly assume that for a Christian to take any kind of medication is an indication of a lack of faith. Meanwhile, God is not averse to the use of medication. If a Christian uses medication, it doesn’t mean he’s done something wrong. In the Old Testament, God gave the priests medical instructions for the people, as we read in our opening verse.
We find the same allusion in Revelations 22:2: "In the midst of the street of it, and on either side of the river, was there the tree of life, which bare twelve manner of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations." Did you notice that it says, the leaves of the tree were for the healing of the nations? In other words, healing came from the use of those leaves. This helps us understand God’s thinking concerning medicine, and how He wants people well.
However, the Word of God is the best medicine; far more potent than any herb or medical drug: "My son, attend to my words; incline thine ear unto my sayings. Let them not depart from thine eyes; keep them in the midst of thine heart. For they are life unto those that find them, and health to all their flesh" (Proverbs 4:20-22).
Here, we discover the curative and therapeutic power of the Word; it’s health, that is, medicine to your flesh!
The word "health" is from the Hebrew word "marpe" which means medicine, healing or remedy. It connotes that which has curative ability. You should rather use your faith to receive healing through the Word. There’re ailments that till date, have defied any known medical diagnosis and cure; but the Word of God is the infallible remedy. Therefore, trust the Word for your healing and health.