How can one get rid of the problem of erectile dysfunction that prevents intercourse with one's wife, and is there a remedy for that from the Quran and Sunnah?

A Muslim should consider tribulations as good and a mercy from Allah for the expiation of sins and the elevation of ranks. What has afflicted you may be due to the devils among the jinn, and it is treated with ruqyah (Islamic incantation). This involves: taking seven green sidr leaves, crushing them, and placing them in a container with enough water for a bath. Then, the following should be recited into the water: Surah Al-Fatiha, Ayatul-Kursi, verses from Surah Al-A'raf (106-122), verses from Surah Yunus (79-82), verses from Surah Taha (65-69), Surah Al-Kafirun, Surah Al-Ikhlas, and the two Mu'awwidhatayn (Surah Al-Falaq and Surah An-Nas) (three times each). Also, some legitimate supplications such as: "O Allah, Lord of mankind, remove the affliction. Cure, for You are the Healer. There is no cure except Your cure, a cure that leaves no disease" (three times), and "In the name of Allah, I perform ruqyah for you from everything that harms you, and from the evil of every soul or envious eye, may Allah heal you. In the name of Allah, I perform ruqyah for you" (three times). This should be accompanied by adhering to obedience to Allah and avoiding His disobedience, and persistently reciting the Quran and remembering Allah.