Does praying for the Prophet (peace be upon him) bring healing by the permission of Allah?

Praying upon the Prophet, peace and blessings be upon him, is one of the best acts of worship and greatest deeds of obedience through which Allah Almighty relieves every anxiety and cures every sorrow. The proof of this is the hadith of Ubayy ibn Ka'b, may Allah be pleased with him, who said to the Prophet, peace and blessings be upon him: "O Messenger of Allah, I frequently invoke blessings upon you. How much of my prayer should I dedicate to you?" The Prophet, peace and blessings be upon him, replied: "Then your anxiety will be relieved, and your sins will be forgiven."