Sayyidah al-Shifa' bint Abdullah (may Allah be pleased with her) said: The Messenger of Allah (peace and blessings be upon him) came to me while I was sitting with Hafsah bint Umar (may Allah be pleased with her), and he ((peace and blessings be upon him)) said: "What harm is there for you in teaching her the ruqyah for namlah (skin sores), just as you have taught her writing?"
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21160