Iyar is the second month on the Jewish calendar counting from Nisan.

Shortly after the Exodus, the thirsty Israelites reached a well of bitter water. Moses cast a tree into the water, and it miraculously became sweet. G‑d then promised that if Israel followed His ways, “the diseases I have placed on Egypt I will not place upon you, for I am G‑d your Healer (אני י‑י רפאך).” The acronym for this last phrase spells out the name of the month of Iyar (אייר), thus indicating that Iyar is a propitious time for healing.

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