Aishah RA reported: When the Prophet (sallallaahu 'alayhi wa sallam) visited any ailing member of his family, he would touch the sick person with his right hand and would supplicate: "Allahumma Rabban-nasi, adhhibil-ba'sa, washfi, Antash-Shafi, la shifa'a illa shifa'uka, shifaan la yughadiru saqaman (O Allah! the Rubb of mankind! Remove this disease and cure (him or her)! You are the Great Curer. There is no cure but through You, which leaves behind no disease)." (Bukhari and Muslim)
