19. Fabric Softener Sheets
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Used or unused dryer sheets contain cationic detergents, which can cause severe mouth ulcers, drooling, vomiting, and even life-threatening respiratory issues if ingested by dogs. Many dogs are attracted to their scent, making them a hidden household danger.
What to Do: Keep dryer sheets and laundry products securely stored. If your dog chews or ingests a fabric softener sheet, call your vet immediately.