This app of Medicine of Prophet: Every Illness Has Cure It is free to download and learn about prophet Mohammed peace be upon him teache. There are many Ahadith (traditions of Prophet Muhammad peace be upon him (pbuh) which encourage the Muslims to seek medical treatment. Some of them are mentioned below:

Abu Hurayrah narrates that The Prophet pbuh said:
“There is no disease that Allah has created, except that He also has created its remedy.”
Bukhari 7.582

Usamah ibn Shuraik narrated:
“… ‘O Allah’s Messenger! Should we seek medical treatment for our illnesses?’ He replied: ‘Yes, you should seek medical treatment, because Allah, the Exalted, has let no disease exist without providing for its cure, except for one ailment, namely, old age’.”
Tirmidhi