Natural Remedy

E.,
You can go to the petstore and buy a dewormer, for a very inexpensive price. It is generally one dose. Natural remedies for worms (and I am a HUGE natural remedy lover!) do not often work, or they work very poorly. Worms is something that needs to be taken care of ASAP. Dewormers are almost never a dangerous pharmaceutical for pets, since it is a small dose that is not repeated often. it runs an extremely rare risk of any kinds of side effects. Leaving a cat with worms (which is what a natural remedy will likely do) would do far more harm, then the tiny risk of side effects from a dewormer. There are risks for side effects, of course...even if they are uncommon. However, the benefit outweighs not getting rid of the worms immediately.

Go online and buy a homeopathic book specifically for dogs and cats. In it you will find the answers to every question you have about caring for kitty naturally.
I can't tell you the name of the one I have at home since I'm not there. You can buy the homeopathics online from Boiron or at the health food store. If you have no retail outfit in your area and usually health food stores have only the 50 most popular ones in stock rather than a huge assortment go online.
Get a kit as there are a multitude of remedies you will need over the lifetime of your cat.

Nope - you need to get deworming pills.

wormwood is a good tincture. So is black walnut. They taste nasty so be prepared for your cat to be unhappy about it.

You can pick up worm pills at the pet store, PetSmart, Pet Co. Make sure you know what type of worm it is so you can treat him/her correctly.