Nedarim 41B

כחיזרא לדיקלי, חד לתלתין יומין, וכי תירייקי לגופא. רב נחמן בר יצחק אמר: לא היא ולא תירייקה.

like thorns for palm trees, as the thorns prevent people and animals from touching and ruining the dates. The fever is advantageous if its incidence is once in 30 days, and it is like an antidote [tiraiki] for poison in the body. Rav Naḥman bar Yitzḥak said: It is preferable for one to have neither fever nor the benefits of its capacity to serve as an antidote.

אמר רבה בר יונתן אמר רב יחיאל: ערסן יפה לחולה לרפואתו. מאי ערסן? אמר רבי יונתן: חושלא דשערי עתיקתא דריש נפיא, אמר אביי: בעיין בישולא כעין בישרא דתורא. רב יוסף אמר: סמידי דשערי עתיקתא דריש נפיא, אמר אביי: בעיין בישולא כבשרא דתורא.

Rabba bar Yonatan said that Rav Yeḥiel said: Arsan is beneficial for the sick person for his cure. The Talmud asks: What is arsan? R' Yonatan said: It is old hulled barley from the beginning of the sifting process. Abaye said: And that barley requires extensive cooking like the meat of a bull. Rav Yosef said: Arsan is fine flour [semida] ground from old barley from the beginning of the sifting process. Abaye said: And that flour requires extensive cooking like the meat of a bull.

אמר רבי יוחנן: בורדם, אין מבקרים ואין מזכירין שמו. מאי טעמא? אמר רבי אלעזר: מפני שהוא כמעיין הנובע. ואמר רבי אלעזר: למה נקרא שמו ״בורדם״⁠ — שהוא כמעיין הנובע.

R' Yoḥanan said: One does not visit a person suffering from buredam, an intestinal illness, nor is the name of that illness mentioned, because it is embarrassing for the one suffering from the illness. The Talmud asks: What is the reason that one does not visit him? R' Elazar said: It is due to the fact that he is like a flowing spring, as the symptom of the illness is severe diarrhea. And R' Elazar said: Why is the illness called buredam? It is due to the fact that the one suffering from the illness is like a flowing spring, a bottomless pit [bor] of blood [dam].