No, but be very careful, does your cat really need a bath, cats normally take really good care of their own grooming, check with your vet first.
soap
Give it a bath - using cat shampoo.
milk and fish
Cats clean themselves. Giving them a bath once in a long while shouldn't physically hurt them in any way, but could hurt your relationship with your cat (because of their dislike of water). Flea baths are fine if your cat has fleas, and if your cat gets into something nasty (rotten eggs, dead animals, etc.) then a bath would be fine. But you should really leave simple dirt cleaning up to the cat. They have a comb built into their tongue for a reason : )
Unless you have long haired cat who's fir gets matted there is really no reason to give them a bath, they do it themselves they experts at it. NEVER give your pet a bath using any kind of products that are made for people, use a cat shampoo.
If the cat actually eats it, a little shouldn't hurt.
Give the dog a bath.
it is because cats cant swim and water suffocates them
Shower Hour.
Gently hold your cat by the scruff of the neck, it's very hard to hurt the cat this way as this is how the mother cat carries her kittens. Slowly and while talking gently run the warm water (make sure it's not to hot or cold) and slowly use your hand to run water over your cat. Give the cat time to get used to the feel of the water and then continue with the bath
Yeah it will give her somesort of kidney disease
Cats generally keep themselves clean by grooming. However should a cat have a toxic substance on its fur it is important to bath the cat rather than risk the cat ingesting the substance. The person bathing the cat needs to dress so as to avoid being scratched. The cat will feel safer in the bath if there is a rubber mat or towel on the base. After putting four or five inches of water in the bath, hold the cat in the water and wash the cat with a washcloth and animal shampoo.