What to do about a stray cat with severe diarrhea and house soiling?

Sounds like the first thing I would do is try and deworm all these kitties, as this could very well be the reason for their diarrhea / general GI issues. There are many different oral dewormer products, some of which are pills while others are liquids. If you can't touch them but you are confident that you can feed each one individually (without another cat snagging food), you can sneak Drontal tablets into each of the cat's daily feeding in some wet food. The dose may be slightly different depending on weight - the product is over the counter with the doses written on the back of the bottle. Unfortunately, if this is the not the case and you can't be sure who is getting what, there really is no safe / fool proof way to treat this sort of thing. There are liquid products but you won't be sure if they got it all, or if they will take it at all because of the taste of the product. My suggestion would be to put out humane traps, catch them one by one, and deworm them this way. This would also give you the opportunity to get them to a low - cost spay / neuter facility to be fixed if that is an option. Hope this makes sense.

No, you cannot give him Imodium. He has to see a vet for this now. If paying for a vet is an issue, you can see if your vet accepts payment plans, if there is a low cost clinic in your area, or you can apply for Care Credit online. There is also an organization called Red Rover that give grants for treatment of sick animals, and you can see if you qualify for one of their grants. Best Friends also has a list of resources that offer financial assistance on their website. I'd also see if you can borrow money from family and friends. http://www.humanesociety.org/animals/resources/tips/trouble_affording_pet.html?credit=web_id91754962 https://www.redrover.org https://www.carecredit.com http://bestfriends.org/resources/financial-aid-pets http://lessonsfromaparalyzeddog.com/when-pet-owners-cant-afford-veterinary-bills/ http://www.dogheirs.com/resources-affordable-veterinary-care/ If you truly cannot afford a vet for him, take him into the SPCA now. They can get him the veterinary treatment he needs, and find him a home.

Stray cats can pretty nasty parasitic infections. I would check to see if the vet ran a fecal examination + a Giardia test. Both of these can pick up on many parasites that can cause persistent diarrhea. However, if these tests were already done and were negative, then additional testing may be needed to find other not so common causes of diarrhea like the one ran by Idexx. Http://www.idexx.com.au/pdf/en_au/smallanimal/reference-laboratories/diagnostic-updates/realpcr-canine-feline-diarrhea-panels.pdf Any pet with diarrhea should be on a broad-spectrum dewormer, probiotics and potentially and antibiotic for treatment regardless of any of the tests mentioned above. I would suggest going back to the vet for additional treatment and these additional tests if not done already.

Given that he has been on the streets, he likely has intestinal worms, and will need a deworming treatment. I would have him seen by a vet first thing tomorrow for a physical exam, blood tests, and urinalysis. It may also be advisable to test him for FIV and FeLV since he's been out on the streets. The vaccines he needs includes FVRCP and rabies. He will also need flea treatments and heartworm treatment, and he should be tested for heartworms before getting the heartworm treatment.

Submit a stool sample to your veterinarian to diagnose intestinal parasites or bacterial overgrowth. Deworm him if indicated. You can also have the vet collect a sterile urine sample to submit for urinalysis and culture to rule out UTI or stones. In the meantime, try a 24 hour fast followed by a bland diet in small, frequent amounts. Begin with one tablespoon of food every hour and gradually increase the amount. Feed bland until the stool is normal then transition slowly to the regular diet. Consider a veterinary probiotic, such as FortiFlora, ProViable or ProStora, to promote gut health. A pheromone product such as Feliway spray or plug in diffuser may decrease any anxiety. A small animal repellant along the border of your property will keep strange animals away and out of sight. Thoroughly clean soiled areas using an enzymatic cleaner such as Nature's Miracle.

This actually seems to be more related to diarrhea. You can try to feed some bland food like boiled chicken and add probiotics to the food (can find this at the pet store). Make sure he has plenty of clean water available. If you notice that he loses weight and/or condition, then it would be best to take him to a veterinarian, or local shelter for treatment. I hope that helps and Fluffy gets better soon.

It sounds like your kitty may have intestinal parasites causing his diarrhea. I would get his poop tested through your vet first to determine what kind of parasite is present so that this is treated for appropriately. You can also try a general dewormer from your local petstore if you just want to try something before having to make an appt. I do hope that your fur baby Whisket's stools return to normal soon! Best of luck and take care.