Do, please, mention her discoloured comb to the vet, and maybe bring the couple of pics you posted of her - I think it is very concerning that her comb is so deeply purple. Was she overheated...and just brought into the house to cool off? ?Maybe she isn't drinking enough with her impacted crop and the heat? I'm not a vet nor doctor - but it is worriesome to me.
Maybe @BY Bob or @RoyalChick (? or @Ponypoor ) has some more constructive and informed thoughts regarding this.