R. Yanai Ze'ira, the tuft in his ear fell out, and he wanted to return it on Shabbos. His colleagues rebuked him, due to Refu'ah.

Explanation #1: R. Yanai held that the oil (in which the tuft is dipped) heals (and it had already dried out). Chachamim held that the tuft heals.

Rejection: Rav Yehudah taught in the name of R. Ze'ira that if one's ear hurts, he may put oil on his head [and it will descend to his ear], and whispers [a certain text], as long as he does not put the oil [on his ear] by hand or through a Kli.

Explanation #2: R. Yanai holds that the Halachah follows R. Yosi [who permits taking covers of Kelim even if they have no handle. The same applies to a tuft], and his colleagues hold that the Halachah does not follow R. Yosi.

Objection: Didn't R. Ba bar Kahana say in the name of R. Chiya bar Ashi citing Rav that the Halachah follows R. Yosi? (Also the colleagues should permit!)

Explanation #3: R. Yanai holds that they did not make [a person] like land [even R. Yosi obligates a handle to move covers of land]. His colleagues hold that man is like land.

Support: Didn't R. Ze'ira say that R. Chiya bar Ashi made a handle for the tuft in his ear? [Since he rules like R. Yosi, we must say that] he holds that man is like land!

Question: Is this reasonable?! (Covering man is not at all like covering land!)

Explanation #4: Rather, R. Yanai holds that it is not common that he will [take it out] and walk four Amos with (while holding) it, and his colleagues hold that [it is not repulsive, so] it is common that he will take it out and walk four Amos with it. (We explained this like NO'AM YERUSHALMI.)

R. Mana: I heard the reason from R. Shmuel in the name of R. Ze'ira, and I do not know what I heard.

Question: What is the reason?

Answer (R. Yosi): Presumably, a golden tooth was expensive for her. She may not go out with it, for if it falls, she will return it.

Question: What can you say about an artificial tooth? (It is of wood. It is not expensive!)

Answer: She is ashamed to tell the carpenter to make another one for her, so if it falls, she will return it.

R. Yosi and R. Ami - one of them, his tooth was hurting him, and the other ruled for him [that he may heal it on Shabbos]. The other, his ear was hurting him, and [his colleague] ruled for him [that he may go out with a tuft]. We do not know which was this and which was this.

Inference: Since R. Yosah asked about R. Yakov bar Acha's doctor [on Shabbos] "what to do for the tooth of R. Yakov bar Acha our colleague'', since R. Yakov never said a vain word in his life, this shows that he ruled [about a tooth. We explained this like PNEI MEIR.]

(Our Mishnah said "if it fell out, she may not return it.'') R. Yanai [who permits putting a tuft in the ear on Shabbos] explains [that the Isur to return applies only to what was taught just before this, i.e.] to a pepper and a salt crystal. His colleagues [who forbade a tuft] explain [that the Isur to return applies to] everything [including a tuft. We explained this like HA'GAON RAV C. KANIEVSKY, SHLITA].

(Mishnah): One may go out with a coin on Tzinis (a foot ailment).

Young girls may go out with Chutin, or even with chips of wood [in holes pierced] in their ears.

Benos Yisrael in Arab lands may go out with their faces totally covered, except for their eyes, and Benos Yisrael in Madai may go out with a cloak buttoned [closed];

Anyone may go out this way. Chachamim merely discuss the normal practice.

(Gemara): One may go out with a coin on Tzinis. This is the ailment Pudagrah.

(Rav Acha bar R. Ba bar Mamal): [One may go out not only with a coin, rather,] even with a piece of metal.

(Mishnah): Young girls may go out with Chutin.

(R. Ba citing Rav Yehudah): Even if they are wound around her neck [it is permitted].

Aba bar Ba (to his son Shmuel): Do not accept [our text of] the Mishnah. Rather, they may not go out with chips of wood in their ears. (They are a load!)

[The correct text of our Mishnah says] "Araviyos may go out Re'ulos, Madiyos may go out with a cloak buttoned...'' [without a Vov. Our text, with a Vov, connotes that only Araviyos may go out Re'ulos, and only Madiyos Perufos, but this is unlike it concludes "anyone may go out this way...!'' We explained this like PNEI MOSHE.]

(Mishnah): She may button on a stone, nut or coin, but she may not button initially on Shabbos.

(Gemara - Beraisa - R. Shimon ben Gamliel): We learned [that she may not button on Shabbos] only on a coin or stone, but it is permitted on a nut, for one may move it.

(Rav Ada bar Ahavah): R. Shimon ben Gamliel holds like Rebbi;

Just like Rebbi says that what one may move is permitted (e.g. a false tooth, and he is not concerned lest one come to carry it), so R. Shimon ben Gamliel says that what one may move is permitted.