Whenever we recover from any illness it is solely because of Allah’s mercy and not due to any medicine or doctor. Nobody can cure us if Allah does not give his command. If it is the will of Allah then a person can get cured easily and if Allah does not wish to cure a person then even the best medicine/doctor in the world will not be able to cure anyone. This fact has been substantiated in the holy Quran, chapter# 26 Ash shuara, verse# 80
80 "And when I am ill, it is He Who cures me;
Therefore, it would be foolish on our part to give the credit of our recovery from any disease to any particular medicine or medical practitioner. It is only Allah, our creator, who has the power of cure.