"It was narrated to me that Abu Hurairah said: 'I took three truffles, or five, or seven, and pressed them. Then I put their liquid in a bottle, and I used it on the eyes of a slave girl of mine so she was cured.'"
Jami` at-Tirmidhi Book 28, Hadith 34
← Previous Hadith "Truffles are the earth's smallpox." So the Messenger of Allah (S.A.W) said: "Truffles are a form of manna, and its liquid is a cure for the eye. Al-'Ajwah is from Paradise, and it contains a cure for poison."

Jami` at-Tirmidhi Book 28, Hadith 33 Next Hadith → "It was narrated to me that Abu Hurairah said:'Ash-Shuniz is a cure for every disease except As-Sam.' Qatadah said: "One takes twenty-one seeds daily, and puts them in a cloth, then infuses (water) and sniffs two drops in his right nostril, and one drop in the left. The second (day) two drops are sniffed in the left, and one drop in the right. The third (day) two drops in the right and one drop in the left."

Jami` at-Tirmidhi Book 28, Hadith 35