As-Suyuti in "Medicine of the Prophet" said, " Mawz — Bananas are hot and damp in the first degree. Their value as a food is small. People with a cold temperament eat them with honey. Some people say that the word ‘talah’ also means ‘banana’, but more correctly it means the fruit of the palm tree.”
In another entry, as-Suyuti says, “Talh — Banana. This fruit is also called Mawz under which name it will be discussed. Almighty God has made mention of it.”
Ibn Qayyim in "Medicine of the Prophet" Allah said: “And (among) talh trees (with fruits) ranged one above another.” (56:29). Most of the commentators say: It is the mawz (banana): and ‘ranged’ (manduud) means ranged one opposite another, like a comb. It is said that talh is a tree with thorns, and ranged in the place of every thorn is fruit. Its fruit has been ranged, some upon others, and it is like the banana. This explanation is more correct. Maybe those ancestors who mentioned the banana meant it by way of comparision, not as identification. And Allah knows best. It is hot and moist. It is best when ripe and sweet. It is beneficial for roughness of the throat and lung, and for cough, and ulcers of kidneys and bladder. It is a diuretic, aphrodisiac and increases semen. It loosens the belly. If eaten before food it hurts the stomach and increases yellow bile [as-safra] and phlegm [al-balgham]. It’s harmful effect is remedied by sugar or honey.”
In Chinese Traditional Medicine, it is called Xiang Jiao and is used to clear heat, moisten the intestines, remove toxicity.
Bananas mashed into a bowl and mixed with honey is very palatable.