(Mishnah): If one is Mudar Hana'ah from his friend, and he visits him [when he is sick], he must stand; he may not sit. He may heal him, but he may not heal his property.

He may bathe with him in a big bathtub, but not in a small one;

He may sleep with him in a bed;

R. Yehudah says, [this is permitted] in summer, but not in winter, for he benefits him.

He may sit with him on a bed, and eat with him at a table, but he may not eat with him from a platter (lest the Madir not take, and the Mudar will have more due to him);

He may eat with him from a platter that returns.

(Gemara - R. Shimon ben Yakim): [If he visits him, he may not sit,] lest he delay.

Our Mishnah discusses when the doctor forbade his property to [the Choleh], but if the Choleh forbade his property on the doctor, he sinned against himself. (The doctor may not enter the Choleh's house.)

Note: If the Choleh might die, Piku'ach Nefesh should override the vow! ALEI TAMAR says that it does not, for he can permit the vow. If he might die before he can get to a Chacham or Beis Din, or he is too weak to permit his vow, perhaps indeed, it is permitted! (PF) This requires investigation.