Using medicines does not contradict the idea of putting one’s trust in Allaah
Question

                What is the Islamic view on using medicines? Does using them contradict the idea of putting one’s trust in Allaah (tawakkul)?
Praise be to Allah. 
          Firstly:
 
          Using medicines is prescribed in general terms. 
 
          It was narrated that Abu’l-Dardaa’ (may Allaah be pleased 
          with him) said: “The Messenger of Allaah 
          
          (peace and blessings of Allaah be upon him) said: ‘Allaah created the 
          disease and the remedy, so treat disease but do not treat it with things 
          which are haraam.’”
 
          (Narrated by al-Tabaraani in al-Mu’jam al-Kabeer, 
          24/254. This hadeeth was classed as saheeh by al-Albaani in al-Silsilah 
          al-Saheehah, 1633). 
 
          It was narrated that Usaamah ibn Shurayk (may Allaah 
          be pleased with him) said: “The Bedouins said, ‘O Messenger of Allaah, 
          shall we not use medicine?’ He said, ‘Yes, O slaves of Allaah, use medicine, 
          for Allaah does not create any disease but He also created its cure, 
          except for one disease.’ They said, ‘O Messenger of Allaah, what is 
          that?’ He said, ‘Old age.’”
 
          (Narrated by al-Tirmidhi, 2038; he said, (it is) hasan 
          saheeh. Also narrated by Abu Dawood, 3855; Ibn Maajah, 3436). 
 
          Secondly:
 
          Using medicine does not contradict the idea of putting 
          one’s trust in Allaah (tawakkul). 
 
          Ibn al-Qayyim said: 
 
          In the saheeh ahaadeeth there is the command to use medicine, 
          and that this does not contradict the idea of putting one’s trust in 
          Allaah, just as warding off hunger, thirst, heat and cold by means of 
          their opposites does not contradict it. Rather, true Tawheed cannot 
          be attained unless one takes the means which Allaah created and which 
          lead to the ends both in terms of divine decree and in terms of sharee’ah. 
          Neglecting the means undermines the essence of putting one’s trust in 
          Allaah and undermines the Divine command and wisdom, because the one 
          who neglects them thinks that this is a sign of stronger trust in Allaah. 
          But neglecting them is a sign of helplessness which contradicts putting 
          one’s trust in Allaah, the essence of which is the heart’s dependence 
          on Allaah to acquire that which will benefit a person in both his religious 
          commitment and worldly affairs, and will ward off that which will harm 
          him in both his religious commitment and worldly affairs. Alongside 
          this dependence one must also take the means, otherwise one will be 
          ignoring the wisdom and command of Allaah. We should not regard helplessness 
          as putting our trust in Allaah, or putting our trust in Allaah as helplessness. 
 
          Zaad al-Ma’aad, 4/15 
 
          And Allaah knows best.