is it okay to get my alhambra necklace wet?

its the yellow gold sweet alhambra mother of pearl necklace

I wore my sweet butterfly and wet it many times and now the mother of pearl is loose just like my bracelet was and have to take it in for repair. I had lost the mother of pearl clover on my sweet bracelet by getting it wet multiple times and at the boutique they gave me a flyer which states how to maintain the stone and they do not reccomend getting it wet.
I now take my pieces off all the time