Hope things are getting better!!. As others have written, there is a medical or emotional reason for the peeing outside of litter box. Cats normally are fastidiously clean - cleaner indeed than most humans! So a thorough med exam would be very informative - a urinary infection, as has been said, can easily cause this problem though it sounds like that may not be the case since she's using the box in the bathroom without any troubles. Age can also cause some incontinence as with humans. With lots of cats in residence, extra litter boxes help. Mine won't even consider using one that has any soiling in it so I have to stay on the case all the time to meet their high standards! As far as soiled areas outside of a litter box, the products available nowadays are fabulous at cleansing and neutralizing odor very easily - you probably have them.. Maybe things will also improve once the worms are gone. How is her remaining eye - does she seem to see very well these days? Is everybody spayed/neutered now? - in addition to the obvious reasons, cats that are "fixed" will have far far fewer medical problems (including far fewer cancers) than if they are not. In the long run. much less money and anxiety.
I really hope Baby will be alright - sending tons of good thoughts for her, and for you. JJ
p.s. Anyone in my house showing lack of compassion would be the one in the tent (or beyond!) so I hope things get better there! I would never shun or allow the shunning of a 4 legged or feathered family member just because it developed a problem - that's when they need us most.