stunning iridescent purple dress w giant bow back

Beautiful and stunning , wore it in a wedding , made to fit at the need so might have to be altered because I am 5"9. Has some wear under the armpit and would need to be dry cleaned . I spent a fortune on this dress and don't want to put any more money into it 🎀 says size 18 but fitted down to a size 10. 50%polyester 50% nylon