Read all Ahadith in chapters on medicine by jami al tirmizi

Qatadah bin An-Nu'man narrated that the Messenger of Allah (s.a.w) said: When Allah loves a slave, He prevents him from the world, just as one of you prevents his sick from water.

Umm Al-Mundhir said: The Messenger of Allah (ﷺ) entered upon me, while `Ali was with him, and we had a cluster of unripe dates hanging. She said: The Messenger of Allah (ﷺ) began eating, and `Ali ate with him. The Messenger of Allah (ﷺ) said to `Ali: 'Stop, stop, for you are still recovering.' So `Ali sat and the Prophet (ﷺ) ate. She said: I made some chard and barley for them, so the Prophet (ﷺ) said: 'O `Ali eat from this, for indeed it will be more suitable for you.

Usamah bin Sharik said: Some Bedouins asked: 'O Messenger of Allah (s.a.w) shall we treat (our ill)?' He said: 'Yes, O worshipers of Allah! Use remedies. For indeed Allah did not make a disease but He made a cure for it' - or - 'a remedy. Except for one disease.' They said: 'O Messenger of Allah (s.a.w)! What is it?' He said: 'Old age.'

Aishah narrated: Whenever one of the wives of the Messenger of Allah (s.a.w) became (feverishly) ill, he would order that some broth be prepared. Then he would tell them to take some of the broth. And he would say: 'It firms the heart of the grieved, and it rids the worries from the heart of the ill just as one of you removes dirt from her face with water.

Uqbah bin Amir Al-Juhani narrated that the Messenger of Allah (s.a.w) said: Do not force your sick to eat, for indeed Allah, Blessed and Most High, provides them food and drink. (Dai'f)

Abu Hurairah narrated that the Messenger of Allah (s.a.w) said: Use this black seed. For indeed it contains a cure for every disease except As-Sam And As-Sam is death.

Anas narrated Some people from Urainah arrived in Al-Madinah, and they were uncomfortable (with the climate). So the Messenger of Allah (s.a.w) sent them some camels from charity. He told them: Drink from their milk and Urine .

Abu Hurairah narrated (from the Messenger of Allah (s.a.w)): Whoever kills himself with (an instrument of)iron, he will come on the Day Of Judgment with his iron in his hand, to continually stab himself in his stomach with it, in the fire of Jahannam, dwelling in that state eternally. And whoever kills himself with poison, then his poison will be in his hand, to continually take it in the Fire of Jahannam, dwelling in that state eternally.

Abu Hurairah narrated (that the the Messenger of Allah (s.a.w)) said: Whoever kills himself with (an instrument of)iron, his iron will be in his hand, to continually stab himself in his stomach with it, in the fire of Jahannam, dwelling in that state eternally. And whoever kills himself with poison, then his poison will be in his hand, to continually take it in the Fire of Jahannam, dwelling in that state eternally. And whoever throws himself from a mountain to kill himself, then he will be continually throwing himself in the Fire of Jahannam, dwelling in that state eternally

Abu Hurairah narrated: The Messenger of Allah (s.a.w) forbade from cures that are Khabith. [Abu 'Elsa said:] Meaning poison