What is sana sana colita de rana?

"Sana sana colita de rana" is a popular Spanish-language folk saying often used in the context of comforting children when they get hurt or have a minor injury. The phrase is often part of a short rhyme or chant, and it is similar to saying "there, there, it'll be okay" in English. The full saying is often: "Sana, sana, colita de rana, si no sana hoy, sanará mañana," which translates to "Heal, heal, little frog's tail, if it doesn't heal today, it will heal tomorrow." This is typically used by parents or caregivers to soothe a child and distract them from their pain. The saying is not based on any literal belief about frog tails but rather serves as a form of verbal comfort and reassurance.