From Japanese-English FreeDict Dictionary ver. 0.1:
[ichi1] 嚏, 嚔, [ichi1] くしゃみ, くさめ, くっさめ, () クシャミ
1. (noun (common) (futsuumeishi))
Note: word usually written using kana alonesneeze
2. (くさめ)
(expressions (phrases, clauses, etc.))
Note: idiomatic expression
Note: word usually written using kana alonespoken twice in response to someone sneezing as a charm against an early death