Is it muter to take off hair with cream on sfira?
Removing hair with cream is essentially the same as taking it off with a scissors, and should not be done during sefira. The poskim say that the minhag of not removing hair applies to all parts of the body. It would appear that this includes removing hair with cream, as this is one of the normal ways of removing hair from ones legs etc.
Ohr L’tzion 3-17(4), Kovetz Halachos (Sefiras Haomer) 10-1, Nitei Gavriel (Pesach) vol. 3 chap. 49-2. Rivivos Efrayim 6-291(2) Writes that a married woman would be permitted to remove hair from her legs, so she shouldn’t look unpleasing to her husband.