The easiest thing to do is feed your dog a Wellness Treat. Wellness Treats cure all pet illnesses in my experience. You can buy them from the vending machine (Dr. Magi-Heal's Medical Vend-o-matic) at the Brindleton Pawspital.
I don't have For Rent, so I can't test your problem myself, but it seems like the obvious solution would be to transfer some funds to your business.
I'd rather not go all the way to brindleton just to get wellness treats, and you can't transfer funds into a rental house. The revenue is transferred directly to the household funds.
I guess it is what it is.
You could try adding the vending machine to a community lot in your own world. I don't know whether it will work on other community lots, or only on veterinary lots.
You could also try making the Wellness Ttreats yourself on Dr. Magi-Heal's Medicine Craft-o-Matic or on Dr. Budget-Bandage's Medicine Craftidink. The Wellness treat requires level 5 Veterinarian skill.
@OmegaGamer123456 as @Sketch793 mentions the Wellness Treats work and also save time at the vets office itself, you mentioned it takes a long time there so instead of a vet's appointment you can just cut that part out and get the wellness treats from the machine to treat a pet without an examination. It's much quicker and once you've been there and bought a big supply of them you don't have to return. All my pet owner Sims carry a supply of Wellness Treats in their personal inventory.
If you add a vending machine at home it needs to be stocked manually by having your Sim create the treats. Or you can buy some again at the vet's office then take them to your new vending machine to stock it.
If you want a quick way to get some funds I usually get a collecting hobby like fishing, harvesting and collecting. Adding a few plants to harvest can be a real money spinner.
Money isn't an issue in my household, don't get me wrong. I actually prefer to use the exam table for the experience of it. It's just a shame I can't because of this darn bug.
I apologise if I'm breaking any rules in commenting here. But I'm really struggling to find the answer to my issue.
I purchased a bunch of those treats from the vet's vending machine, including the poop randomiser but I'm unable to gift it to my puppy. There's a prompt in my inventory for the plain ‘treat’, but only to put away or put in inventory for that one. Do you know how to give them to our pets, please?
@Marley-FoxHi there, if you have vet treats in your inventory you click on a pet to give one to them. It's in the Friendly Social Interactions and usually on the first page.
I'm not in my game right now so I'm not sure which treats can be given to puppies except for the age up treat. But when you click on the puppy or pet and choose the vet treat option if I remember rightly it will show you which treats you can select. The only treats that you gift directly from the inventory are the ones bought from the pet food stall. Regular and vet treats are all in the social wheel. I'll add an image for you when I'm in my game.
Edit: tested in my game and the only vet's treat I can give a puppy is the age up treat. So it won't let you give them the poop randomizer, etc. With all treats in my Sim's inventory it's only the age up treat that appears as an available item. Without the age up treat in the inventory I don't get the vet treat interaction in the social wheel at all when interacting with a pup. But when I click on an adult dog the vet's treat option shows all treats in my inventory (image 3).
If you ever have other questions about the game there's a section here and we're always happy to hear them.
https://answers.ea.com/t5/Game-Questions/bd-p/the-sims-4-game-information-en
