I am on the fence on this. You have made her dependent on you by feeding her...it would be cruel to just stop.
Also, check with your local animal control. Most counties have a program where they will lend you a humane trap to trap the cats, th...

There is a topical wormer...Profender...you can get it from your vet or buy it on-line at Revival Animal Health. I raise Sphynx and have used it for the past 6 months. I think it works great and does not seem to bother their skin.
You may want...

When our kittens are old enough to start using the litter box we use something shallow (like a cardboard box that you buy cases of pop in) and put a litter bag liner over the box...for litter there is a litter made just for kittens that has a litter ...